A couple of weeks ago (I think) Coach Thibs wrote that the pumps he was getting in the gym had started hurting because they were so intense and he linked this to his L-Leucine use. I remember reading this and laughing.
Well the joke is on me, the pumps really are that impressive. The last few high rep workouts I have done the pump HURT. I was doing high rep work the other night for my biceps and back and I had never had a pump like that before. Haha I don't even train "to feel the pump" but man did I.
My weight is also up 6lbs since using the L-Leucine 4x per day and I am through one bottle of the supplement (about day 23).
Anyway I just wanted to share that I think this stuff is a great addition and I'll be using it on a consistent basis.