RB,
Most of my real experience is in the firearm arena, so based on that i gave the turbo nocks a try after I saw the pitch at the Harrisburg Sportsmans show.
They definitely work!
I had some arrow that were underspined for my set-up and put the turbo' s on the shafts with 100gr feild points. No fish tailing, porpising or anything...just straight to the target, and nice groups to boot.
Peer pressure has caused me to drop them for now, got tired of the laughing[
]
Back to your point...spin stabilizing works. Works great on bullets. And if you like them...making a dozen arrows takes 5 minutes.
I still want to try the " hunter" version.
Since I shoot 3,4inch vanes(27gr), nock adaptor(11gr), g-nock(7gr) and sometimes arrow wraps(11gr), I already have 45-56gr on the tail end of the arrow anyway, so sewitching to the turbo hunter is no big deal to me since my F.O.C. is set up to accomodate this weight anyway.
I think the concept is awesome but if the turbo pops off on a pass thru shot, you may find your nock, but what about the arrow?