I wanted to just throw this out there for info sake. I have never taken Mast. Before but I'm dieting for a show in a few weeks. I'm currently on a low dose of test for TRT but I upped it to 300 mg week. I also added some tren. e at 500mg a week. I'm not new to this and have good lifting, and cycle history etc. and have taken tren before also. Anyway, I added Mast @ 400 wk and really did not notice too much. So, I bumped it up to 600mg wk and that's the sweet spot for me! I know everyone is different and I just thought I'd share my experience. Now my muscles feel like granite. I'm very lean, under 6% right now, since the show is in 2 weeks, but the mast. Really gives you a grainy hard look. Personally, I will not use it unless during pre-comp but for that purpose it seemed to work very well. I was on winny right before the mast. But I stopped since it was starting to effect my elbows.