As far as negating blazers selling point, I really do not believe it does. Ive cronied both straight and helical with no noticable difference.
Chrono-ing them wouldn't play into their claim. You could Chrono feathers v. Blazers and not get a discernable diff. (I'm betting). What their claim is......is that feathers and larger vanes make the arrow spin more....and the loss of speed (related to increased drag) will affect DOWNrange accuracy. So, at "normal" bowhunting distances.....I don't drink their Kool-aid. If you shot it through a chrono at 45yds......then I'd think it might tell us something. But....I'm thinking that's a futile exercise, also. What's the point?
Besides, the amount of helical you can get with a blazer is rather minimal.
My point.....exactly.