Haha that's funny. I found a formula in FLEX that predicted 5 people's bench press 1RM at 98% accuracy based on a 5RM. And another formula that predicted squats/deads at 94% accuracy. I told a friend and he figured what his would be...and he went around telling people that they were his maxes.

Good work though. PRs are always good. What is your PR for power curls?