RE: Rest hitting shelf
OK....I hope I am right, this is what I would do. Loosen the mounting bolt and lift the arm making it more horizontal. This of course will raise your prongs quite a bit, but you can raise your nock point to level it back out. Oh, you will probably need to raise your prongs after the move so they "stand up" again. After you move the mounting bar, the prongs will be quite flat.