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November 2012- Bronson Beyer captured some video of the Patent Pending SlipShaft™ KT Break-away Head in action. Bronson's setup:: KT-281S Break-away Head rigged with 600# HIVIS Spectra Q-Powerline leash (tether) line and our 375T Front-end Adapter propelled on a 9/32" threaded shaft. Speargun used was an Aimrite 130cm. To see the clip click here.

 

June 2012- SlipShaft™ KT Break-away Heads and Front-end Adapters now on sale at Hanapa'a Fishing Company, (808) 845-1856Click here for more info on our KT Break-away Heads and Front-end Adapters.

 

May 26, 2012- Hanalei Adric and partner Calvin Lai, Jr. won 1st place at the past 2012 Gene Higa Memorial in the speargun division after landing 2 (two) Uluas with a total weight of 66.6 lbs. Hanalei's Patent Pending SlipShaft™ conventional style setup included our KT-312 Break-away Head rigged with 480# stainless steel cable leash line and our 438T Front-end Adapter propelled on a 5/16" shaft. Speargun used was a Hatch Custom. To see large photo click here.

 

December 2011- Our latest KT-Break-away Head named "KT-281S Break-away Head" is now available at selected dive shops and in our online retail store. This head was designed to be used on Pole Spears for reef diving. It features 2, 2" stainless steel flopper barbs and and has a shorter overall length 5.5" unlike our blue water heads which are 7.5" and features 2, 3" stainless steel flopper barbs. Be advised that extreme caution must be used so as to not allow your head and adapter to hit any rock or hard objects after through penetration of fish with full impact force because doing so may cause severe damage to your head and adapter. This head may also be used on a spear gun shaft for blue water or reef diving however it has shorter 2" flopper barbs so it will not have the holding range (about 3.5") like our KT-312 & 281 Break-away Heads which have holding ranges of about 5.5" respectively.

 

 

November 2011- Our new Online Retail Store launched on November 11, 2011. Be sure to visit as most of our popular 3-Prong Hawaii and SlipShaftproducts are posted. Click here to enter our store.

 

 

October 2011- We have designed an adapter so divers can use our Patent Pending SlipShaft™ technology and KT Break-away Head on 3-Prong Hawaii's Pole Spears. This adapter called KT Break-away Head to Pole Spear Adapter allows divers to simply convert their 3-Prong Hawaii Pole Spear to use a break-away head while providing a high level of protection against damage to the Pole Spear itself after shooting large open water fish because of SlipShaft™'s Patent Pending revolutionary design shown on graphic. For divers seeking a more challenging method to spear blue water fish rather than using a spear gun this is the solution for you! See, inquire or purchase our KT Break-away Head to Pole Spear Adapter and other SlipShaft™ products at Maui Sporting Goods Spearfish, Oahu, Hawaii, (808) 735-3897 to convert your 3-Prong Hawaii Pole Spear today. Visit our "Prototype" web page for more info click here.

 

 

June 2011- Newest and final model of the KT-Break-away Head has been completed. Our final model is machined from 17-4 stainless steel and no sleeve bearing is incorporated. A tighter tolerance along with a polished finish on both the adapter nipple area and the head bore inner wall allows for smoother separation and provides the most durable head/adapter option for our KT-Break-away Head. All previous prototypes and ideas has been discontinued.

 

April 25, 2011- After further testing we have found that our Delrin plastic sleeve bearing installed in our KT Break-away Heads which has proven to work really well in regards to allowing the head to separate from the adapter more freely is not durable enough so we are now using a much more durable Bronze sleeve bearing instead. For those who are still using a KT Break-away Head with Delrin sleeve bearing we will update the sleeve bearing to a Bronze one free of charge.  

 

 

April 20, 2011- Diver Spencer Haskins landed a 26# UKU on April 20, 2011 using the KT-312 Break-away Head rigged with Hivis 600# Spectra 2000 leash line. Shaft diameter was 9/32" and outfitted with a SlipShaft™ 375T Front-end Adapter. Spencer said that he shot the fish at the end of the spear gun's shooting range which means that the KT-312 Break-away Head was not able to pass completely through the fish and the fish fought for 15 minutes. The interesting thing is that despite the far shot the KT-312 Break-away Head was able to penetrate enough so the back flopper barb and tip was able to catch under the fishes skin. Click here to see photo.

 

April 6, 2011- Diver Spencer Haskins landed a Mahi using the KT-312 Break-away Head rigged with Hivis 600# Spectra 2000 leash line. Shaft diameter was 9/32" and rigged with a SlipShaft™ 375T Front-end Adapter. Click here to see photo.

 

March, 2011- Update for our close range SlipShaft™ "Disposable" solution for shooting big game in or out of holes. World renowned free diver Hanalei Adric who is testing a prototype SlipShaft™ "Disposable" spear was able to shoot an Ulua (giant Trevally) at close range and everything worked great; the disposable shaft punched through the fish with ease allowing the break-away toggle head to open then as the fish started to fight the disposable shaft shattered/broke like it was designed to. Hanalei landed the Ulua but it was only 18 lbs so he will update us as soon as he lands a bigger one. We provided Hanalei with a few additional disposable shafts in which we weighted with sand just to give them more weight to help the spear punch through bigger/thicker Ulua.

 

March, 2011- Our KT Break-away Heads w/patent pending Delrin sleeve bearing design and Round Nose Front-end Adapters now on sale at Maui Sporting Goods Spearfish, Oahu, Hawaii, (808) 735-3897.

 

February 20, 2011- Diver Marnie Balubar landed an ONO in February 2011 using the KT-312 Break-away Head rigged with Hivis 600# Spectra 2000 leash line. Shaft diameter was 5/16" and rigged with a SlipShaft™ 438T Front-end Adapter. Click here to see photo.

 

February 8, 2011- Our initial intention for SlipShaft™ Tube Shaft Model was mainly for blue water however through some testing we concluded in October 2010 that it was to light for blue water use and hence the tube shaft model was put in the "close range" small/medium game market. We were a little disappointed at the time with this outcome but several months has passed and we are excited to announce that we may have discovered a better application for our Tube Shaft Model! Basically it's a close range "Disposable" solution for shooting big game in or out of holes. One of the best spear fishing free diver in the world, Hanalei Adric is trying out a prototype we made for him and he intends to shoot huge Ulua (giant Trevally) at close range with it so we will report how it worked as soon as we get feed back from him. So if the spear works what's the value? Well how about being able to shoot big game at close range in or out of holes knowing that to replace your shaft costs less than $15 USD plus think about when you travel/go on a dive trip imagine how much you can cut down on the amount of heavy 5/16" steel threaded shafts you have to pack!

 

January 18, 2011- Our KT Break-away Head w/Delrin sleeve bearing and Round Nose Front-end Adapter will make it's market debut in the Maui Sporting Goods Spearfish booth at the upcoming 2011 Hawaii Skin Diver Expo at the Neal Blaisdell Center scheduled for March 20. There will be 2 models; KT-312 & KT-281 heads and 4 adapters (5/16 threaded, 5/16 pin, 9/32 threaded and 9/32 pin). If you are interested in this break-away head be sure to visit the booth to check them out and you will also have the opportunity to purchase them as well! More info posted on our Products web page click here to see.

 

December 30, 2010- New KT Break-away Head w/Delrin sleeve bearing and Round Nose Front-end Adapter. Toggle Break-away Head put on hold.

  • SlipShaft™ Flopper Break-away Head... A new double flopper barb break-away head design idea by Kurt Taguma has inspired us to produce a few prototypes and they are being tested in the blue water by a select few divers. So far we are finding out that this head design works really well and is proving to be the most reliable & consistent as far as "breaking-away" from the spear shaft & providing "stopping functionality" whether setup in a full SlipShaft™ system or in a conventional way like most break-away heads on the market today. This head we named the KT Break-away Head will most likely be the one we will be putting on the market soon because simply put IT WORKS each and every time you need it to. Also to make our KT Break-away Head even better we have a Patent Pending design which incorporates a plastic (Delrin) sleeve bearing into the head's back end bored portion which helps the head separate from the adapter more easily by cutting down on friction. Divers will be able to use our KT Break-away Heads on most popular size blue water shafts (9/32" & 5/16" and their metric counter parts) along with our uniquely designed Front-end Adapter in a threaded or pinned style configuration. The Front-end Adapter has also been redesigned a little as we gave it a more "round nose" shape on the front portion to further decrease binding upon separation of head and adapter due to skewing. A link to see more views of this head is posted on our "Prototype" web page click here

  • SlipShaft™ Toggle Break-away Head... After further testing by a few selected divers we have learned that our Toggle Break-away Head does not separate from the front-end adapter after through penetration of the fish due to metal binding against one another and the tag/keeper line tension not having a chance to slack to enable the head to separate from the adapter so we have decided to put this head on hold indefinitely. This only applies to a full SlipShaft™ system setup where the tag/keeper line is routed throughout the spear gun. Some of the test divers have setup this head like the current ones on the market today and they work fine in this configuration however we have chosen to move forward with our Flopper Break-away Heads instead since they have proven to work 100% of the time.

 

October 29, 2010- A couple of updates to report.

  • 1st our SlipShaft™ Tube Shaft Model (ones made with carbon tubing for the body section) with our uniquely designed Flopper Break-away Head will most likely settle in the "close range" game market. Game you would normally shoot with a >10' 3-prong is perfect for our carbon Tube Shaft Model as the effective maximum shooting range is about 5'. Also further testing have proven that since the overall spear is so light the velocity decreases tremendously when the spear hits its target or travels beyond 5'. We found that this rapid decrease in velocity is not necessarily a negative attribute (if you are disciplined to the effective range of the spear while diving) but in fact a positive one for such a light weight spear; 1. Spear has far less chance of getting stuck in rocks, 2. Spear's velocity dissipates quickly upon the initial contact of the target which translates to most of the energy being transferred directly into the fish and 3. The speed of the spear within it's effective range is lighting fast. The end result is a more silent super light weight spear with pin point accuracy within it's effective range.

  • 2nd our SlipShaft Solid Steel Rod Models are currently being tested by a few selected divers and we have found out that our initial prototype needed some design changes due to the toggle break-away head not separating from the front-end adapter after through penetration of the fish. We have made the following design updates; our Revolutionary Designed Front-end Adapter sleeve portion was shortened and the finger nail on our break-away toggle tip has been updated with thicker steel and provided more catch space. These redesigns will be tested and more news about our results will be posted here as soon as they become available.

September 2010- We have been brain storming on how we can apply SlipShaft™ technology to solid steel shaft spears (ones in which we can apply SlipShaft™ technology to on the market today or produce our own) for divers who prefer traditional spear shaft weights and have been successful in figuring it out! Submitted documentation for a provisional patent for Sliding Shaft Spear with Detachable Spearhead, our revolutionary/uniquely designed components and revolutionary design for the tension setup provided by the tag/keeper line to hold our uniquely designed break-away spear head on the shaft's front-end with the patent office. 

 

September 13, 2010- First off, this SlipShaft™ is not for the average diver let alone a beginner.  This is a precision tool for the advanced diver that is keen to hone his/her spearing skills to enable them to put food on the table.  I found this shaft considerably lighter than your typical stainless steel shaft.  With this light weight attribute comes at the expense of distance.  For myself, I have found that this shaft is only effective approximately 5-6 feet from the gun.  Beyond that range, the shaft is visibly slower and losses considerable penetration power.  That being said, this shaft is not for the diver that relies on a hail mary shot to land their fish.  The diver that uses this shaft must have the skill to be able to stalk fish effectively and get within range of their preferred target.  Based on the effective range of this shaft, I have found it to have an effective range of a typical 10ft Yokooji/Ohara type of 3prong.  I myself love to 3prong with my 10ft Yokooji.  However, after several hours of diving shooting at aholehole or menpachis, my hand will tire from using the 3prong band after several hours.  To remedy this solution without calling it a day, the 3prong diver can use this shaft on a 75 or 90cm gun and continue the dive.  Moreover, this shaft on a 90cm or 75cm gun will allow you to shoot into tight holes that a longer 3prong would prevent you from doing so.  I found that with the construction of the SlipShaft™, even if a fish is hit the SlipShaft™ does not engage unless you get hung up on a rock.  In that situation, the integrity of the graphite shaft is preserved without damage.  In all, this shaft is a great addition to any serious diver's arsenal.  It allows them to enjoy the sport of catching small game while enabling them to enhance their skills.  I highly recommend it! Submitted by test diver Lance K.
 

September 2010- SlipShaft™ has been in our testing phase since may 2010 and thus far feed back from our selected divers have been really positive. Early prototypes were much to light so newer ones have been produced with more emphasis on increased overall weight. Early prototypes were in some cases 60 - 70% lighter than their steel counter parts which proved to be to light. Later ones have been in the range of 40 - 50% lighter which proved to perform much better under water. Accuracy, speed and less power to propel a SlipShaft™ have all been proven to be true by our test divers as we continue with our testing phase.

 

May 2010- Official patent pending status granted from patent office for Hollow Shaft Spear with Detachable Spearhead (Tube Shaft Model). 

 

April 2010- Submitted documentation for a provisional patent for Hollow Shaft Spear with Detachable Spearhead, our revolutionary/uniquely designed components and revolutionary design for the tension setup provided by the tag/keeper line to hold our uniquely designed break-away spear head on the shaft's front-end with the patent office.