12-4-8(ruffly) thats the clock and how yourvanes should be going thru,the tearing of the vanes comes when they come in contact with the bottom of the WB support,its also the reason you get a wavie vane,because of contact.I like some of you have been useing the WB from just about day one and have learned how to set it up the correct way.The 4-7 clock postition are stiffer and will also cause some vane warp if hitting to much..Iam still old school and put the little extra drop of glue on the front of the vanes but dont baleave its nessasary.As far as fps loss I think they are still figuring around 1 or two fps not enough to make any differance.
I also beleave alot of people are not getting the right size biscuit for arrowthus causing problems.I also bet that if you look at the vane that shows warp or pulling offthey will show the signs of contact(off color or signs of rubbing)...