I personally pay no attention to paper tears. It depends on exactly where you are standing and at what point during arrow paradox the arrow happens to pass through the paper.

If you are bare shaft testing at 25 yards and getting your nocks to point straight out towards where you shot from, over a 15 lb range, I can' t imagine how it happened. I' ve bare shaft tested many bows and have a difficult time getting the arrow to point straight out, at even the most ideal draw weight. 10 lbs either way and I' d be lucky if the arrow didn' t hit the target sideways, from 25 yards.