RE: Rest hitting shelf
I would love to see a pic of the prong rest on the bow if you could swing it. Like a pictuer of the rest from the side with an arrow nocked. At rest not full draw. This would really let us see how it is installed and we could comment on any changes you could make to fix it.
If not we could try and wing it, or I could post a pic of what a typical set up would look like and you could compare it to yours.
Paul