I used gbl when i could get it and to me it was used to chill out I never had a problem with passing out or anyhting dangerous. Now I just have to resort to alcohol which is really pisses me off with calories reduced test and hangovers. Yeah I can be sober but life get real boring after a while...
Yeah but hasnt it been established that the increase in testosterone production is only temporary then it decreases to a lower base level? I think using excercise for testosterone production and excercises for growth different in some respects but yeah the heavy compound options are the best bet.