I am 39, going to compete in the masters division next year. Also trying to gain about 15 more lbs. Currently using 3IU's Jintropin per day. I think it is worth it, GH prices are the lowest they've been for many years. And people still complain it is too expensive. In the '80's, GH costed upwards of $2000 to run it for a month or two. Nowadays its only about a quarter of that for two months worth. I have gained about 12 lbs. in a month and a half, and I know some is water. But I still have good vascularity and decent cuts. I plan to stay on for about six months if possible, and maybe even into my next contest cycle, so maybe a year. I think so far it is worth it to me, I have done many cycles over the years.