small world... I started a thread last night with exact same problem with exact same rest. After the tips I measured my draw cord results and my rest was fully up 3.5's before full draw. I know my black marks are teh rest prongs because I have black implants on them and they are getting torn up. I will be checking my knock point also... it may be low.

http://www.huntingnet.com/forum/tm.aspx?m=1673399