Could it be something other then TP? I have had the same symptoms. Coming up on the target my pin freezes at the bottom. I thought it might be to much pressure on the top limb. I backed out my bottom limb a 1/4 turn at a time and bingo after a 1/2 turn it now holds steadier with no freeze. It seems most of the bows I've own all shoot better with a 1/8 to 3/16 difference in tiller. Just a thought. Jerry