Have any idea what that place may be? I've been looking to try some, and can't find em.

Arthur, I agree with you to a point regarding feathers and noise. Feathers just seem to "whistle" for lack of a better word. I don't know if feathers are actually louder if read by a decible meter, but I do know this, I can hear them and can't hear vanes. But I also know it makes no damn difference to the deer at all. They do indeed jump the string, not the arrow.