I use Vanes not feathers and have found no damage that was not done by clashing arrows on the target. If these things are set up right they wil shoot and group but if they are not set up right they will drive you nuts. I didn't change arrows when I went with the WB either and found it still grouped the same. But then my eyes aren't too good and it may be that I am just shooting as good as the equiptment and my eyes will allow! Fred