Love the advice I come across on this site and figured I'd ask for opinions/experiences regarding P6. A buddy I work with (big time ectomorph) took a cycle and gained 15 pounds.. It's also note worthy that when he began taking it he started his first serious lifting regimen in a long time. He gained 15 pounds, has stopped taking it for three weeks and kept them on. It has me seriously considering buying a tube. I've been lifting for years and am 25. I'm an ectomorph as well but still not nearly as skinny as he was when he started taking it.
Also wondering about negative side effects. He said it dramatically increased his libido. Not one to shy away from a conflict to begin with, he did become noticeably more aggressive while taking it too.