I haven't shot feathers with anything other than traditional bows, but they do seem to fly as well or better than vanes. As far as durability, I think vanes are nearly equal, but not quite as good. I really have see discernable difference in my vanes if I have a hole shot through them, or a slight tear. Been known to just clip off a tear, and shoot arrows with one vane shorter. Doesn't really seem to effect flight. I use 2 inch Blazer and Predator vanes. I even have a few arrows that lose vanes, and I still shoot them with good accuracy out to 40 yards or so. Beyond that, they do drift away. I always wait until I have a half dozen or so to refletch before I do it. lol
2006 Rytera Bullet X 60#---2008 Moab 70#
2008/12 Firecat 60#--- 2010 Warthog 70#
2010/2012 Alien X 65# 2011 Onzas 60 & 70#
2009 Warthog 70#---2009 Firehawk 70#
2010 Strother SR-71 65# & 2012 Strother Rush 65#
I hunt, therefore I eat. lol