For the string grooves I only go as far down as the bow string touches the belly of the limb. Maybe 1/2" past. As for in the shelf area I have seen people cover the entire rest area and sight window. They go up at least as high as the feathers on the arrow to make sure any contact with the riser is quiet. I do not have any pictures to show though I am afraid. Sorry.
Answered on 1/11/2011 by Johnathan Karch from 3Rivers Archery