I have a set up problem on my new BW. I have done the bareshaft tuning and my XX78 2317 fly perfectly (well, a few weak) cut at 29 3/4 and with 140 gr. points. The problem is that one of the feathers is touching the outside part of the shelf rest, just under it. I have try all the different feathers possition, cock feather at 9 o´clock, at 4 o´clock, at 12 o´clock, at 3 o´clock... I have raise and lower the nock, I have play with the fistmelle.... I don´t know what else can I do.... The fact is that I have noticed that this BW (PSAV) has not the same obvious paradox chanel that my other PSAIII has, and the feathers touch exactly there. Any suggestions???