Actually the Tri-Triska had the back side of their blades sharpened as well so to slice a small hole in the skin before the blades open fully. THE HYPERSHOCK BACK OF THE BLADES ARE NOT SHARPENED. THE SHARP PART OF THE BLADE YOU SEE PASSES THROUGHT THE MAIN BODY. SO WHEN COMPRESSED THE TIPS ARE EXPOSED TO GRAB AND OPEN FAST WITH OUT WEGDING WITH NO DEFLECTION BECAUSE THE OPPOSIT BLADE OPENS FIRST ON AN ANGLED SHOT OR THE OUTSIDE BLADE.

I know how all three of these heads operate SORRY BUT YOU ARE NOT UNDERSTANDING HOW THE HYPERSHOCK FULLY WORKS

And all three deploy their blades after they have entered into the animal. Two have or had their blades sharp so they would slice on their way in and one don't. ONLY THE HYPERSHOCK WILL PREVENT DEFLECTION AND WEDGING USEING VERY LITTLE ENERGY AND HAS A LARGER TIP THEN THE MAIN BODY SO AFTER THE FIRST HIT WITH THE HEAD THE REST PASSES IN WITH NO WEDGE. AND IS THE ONLY BROADHEAD WITH INBOARD CENTER OF GRAVITY PREVENTING PREMATURE BLAD DEPLOYMENT. THE FASTER IT FLY THE BETTER THE BLADES STAY CLOSED. NO OTHE HEAD WORK LIKE THIS PICTURE DO NOT TELL THE WHOLE STORY. THINGS MIGHT LOOK CLOSE BUT THE WORK SO DIFFERENT. JUST REMEMBER HOW ALL THE BOWS ND ARROWS LOOK CLOSE BUT WORK SO DIFFERENT!

I can't find Tri-Triska's web site so they may not be around any more. I suspect a lack of advertising like the aftershock. Advertising is everything in the world of business.