Tried my bitzenburger out today and have a couple of questions! I shoot the mathews convertible rest with cock feather down, does it matter where the cock feather is with this rest? Another question is I am fletching with it set on 3 @ 120, and my knock reciever is for a cock vane out setup. Does it really matter, can I just turn my nock once the arrow is fletched? And is the distance betwwen each vane supposed to be a little different on the 3 @ 120 set up? Thanks!