I have used them for the last year. I have bought both new arrors fletched with them from archeryexperts, and I have refletched with them. I will say that using fletch tite platinum, these vanes stay on better than anything else I have tried, but as far as performance, IMHO, they don't work any better than duravanes fletched with a slight offset (2 degrees). I get just as good of groups shooting field points and slick trick broadheads with the duravanes.

Not worth the money if you ask me, 20 bucks for enough vanes to fletch a dozen arrows is pretty steep.