Tweetyep, it happens to me every now and then man. everything is all lined up and body feels great. then grab a pair of say 50s that you normally yep out like a champ and it feels like 120s. i personally think it can be a mind thing or even unseen stress on your nervous system. when i get to that type of feeling, i just go for max pump and call it a day. to easy to get set up to get hurt for me