I have had that issue a little. Start out the day perfect & a couple games in & cant A/T. After taking it completely apart only to find nothing wrong, I figured out the front screw was getting a little loose & I guess letting stuff go to far forward or something. Ive got into a habit of checking it before, after & during the slow spots of a game. Ive been thinking that a star washer like on a Spyder or lock washer would work but havent got around to it.