RE: Nock point question
BH consistancy is more important to me than hitting with my field points. That means that your broadheads are all matched and tuned. You can slightly tweak a rest to get the close if not the same however I usually just move the sights.
Once BH are sighted in Andy, here's what I do to keep shooting field points.
Let's say your BH are zero'd and now your field points are, let's say 2" high left.
Place a dot/marker 2" high left the same as what your aiming for. Aim for one and your arrows will hit the other, this way you know the bow is on and you can keep shooting without destroying broadheads or targets...