Another thing I have thought about, is shooting though the whisker bisquit. I dont think the helicals would work. Correct me if Im wrong.I use a slight off set on my feathers and I use a biscuit.It works fine. As long as my arrow flies true, with no fishtailing.I sticking with the slight offset. If I was using a fallaway rest I might try the helical fletching. I dont like dropaway rests however. When the moment of truth comes, I dont want to worry about my arrow on the rest,when Im concentrating on a buck deer under my tree.