I noticed that the two that I shot through the grass sort of ended up a bit wavey. I didn't like that since I normally shoot Flex Fletch and they return to normal no matter what I do to them. I have to cut or tear them to make me want to refletch them. I am trying feathers again too. I guy at Archery Experts (great guys there by the way) told me they just use Scotch Guard in the camping section at Wal-mart to waterproof their vanes and poof, no more wet weather problems. I weighed a Quik Spin vane, a flex fletch, and a feather. QS=12.6 grains, FF=11.1 grains, and a feather=3.3 grains. Feathers are a good bit faster, but the QS does outspin them by a bit. I am going to be doing a good bit of testing over the next few weeks to see just how well these QS's hold up. Right now it's a toss up between all of them. Thanks for your input.