I am new to bowhunting and have recently started fletching my arrows. While fletching I have wondered about some things and I haven't really seen these topics discussed here so I thought I would ask.

Is there a best distance for the fletching from the nock? I was thinking that if you move the fletches far enough forward, but not far enough tohit the rest, it would move more weight FOC and that would be good, right?

Is there any advantage to having offset fletching and by this I mean have each fletching a different distance from the nock?

This question is not related to fletching so much but, if you have an arrow that is fletched so that it spins a great deal after leaving the bow what happens to the momentum/KE when it hits the deer and stops spinning immediately? Does the energy from the spinning motion get tranfeered to the forward motion (I would think not) or does it have some negative affect on the forward motion?

Thanks in advance for any help with these questions.