Guys I am going to be using IGF-1 from MR for the first time soon (during PCT) and I will likely only be boxing and not really lifting. I was wondering if anyone has ever used it in a weight class sport that requires power and moderate endurance? I have heard about IGF-1's fatigue effects but what I am really talking about is how it effects yor workouts one you force yourself to go. I really am not too worried about maintianing lbm but mostly about not gaining back much fat. So as long as the LBM retention outpaces the fat regian I will be happy. Any thoughts would be appreciated.