RE: paper tuning question
I am never an advocate of moving the rest during tuning unless I absolutely have to. It is best to keep it at centershot if at all possible, which is basically only one position. I'd much rather tune the arrow to the bow by shortening it (start with longer arrows) if need be or added or subtracting weight to the tip. A compound is also nice in that you can adjust the poundage of the bow to aid in tuning.