Has anyone used these, its a nock that twist onto the string and acts like helical to my understanding...

Thanks,
Thomas

I used the turbo nock when they first came out, with those you had to use a drop away rest on a compound.
I would think with a well tuned bow and arrow combo, a nice helical, you shouldn't need it.
Andy

The T-4 doesn't have the vanes on them.  They're just the nock with the angle cut in the slot.  I just happened to pull some of them out and tried them for the first time with trad equipment last week. WOW...    cut my group about in half,very noticeable difference.
The only bad thing about them is you can't use 'em with left wing feathers. Just wish I could get some to fit my AD's.

any one else, i figured they would really hold a broadhead straight in flight if they increased the spin

ttt

You don't have to use a drop away rest with the turbo 4. They said specifically you could shoot it out of a recurve. It looks pretty cool, there was a penetration test that showed 10in more penetration with the turbonock vs regular nock. I might just get some seeing as I shoot rw feathers, (note the arrow was no slower impact point was 1/2in up at 30yards form other arrow) the main reason being penetration and stability benifits. If I can lower my fletch height even better because then the arrows would be quieter.

Anyone shoot them?

ttt one more time