I have never had a single vane come off an arrow from the WB. and the only color vane that ever curled was white ones i used to shoot. BTW I shoot carbon express arrows with what ever the normal rubber vanes are that have been coming on my arrows the past few years.I read here a couple of weeks ago the darker vanes held up better, so i went and checked everyones arrows i hunt with, (5 total people) all with WB and only the white vanes on my old arrows and my uncle's were curling, all the dark colors were perfect, just like everyone has been saying. Thanks guys