There is some good info about Mast in the steroid profiles section. That is actually where I read about the synergy of Mast and Test at low doses and decided to run it during my cruise. I am VERY pleased with the results.
I personally agree with others who have stated that’s Mast is a polisher. If it is summer and you are going to the lake every weekend and want to look extra hard and veiny then Mast is for you. If that isn’t the case, in my opinion, there are better compounds for the money to achieve certain goals.