It's because "mast" itself is a term which refers to AI, as Masteron was originally an AI pharmacuetical. The problem is that most people don't know this or the fact that DHT derivatives all have degrees of AI properties. It's the fact that people don't know the histories of Proviron and Masteron that worries me.
Aromasin is a DHT which became the holy grail of selectivity for aromatise out of a DHT derivative. For the OP, sure you could play the Masteron game, and I've even mentioned it before. Or you could keep it selective. You've got TRT in general, then you could use selectively on forward. This means that you use Aromasin for AI, then if you want further anabolic support in skeletal muscle, use a Non Steroidal Selective Agonist such as RAD140. These things are starting to get good.
Well, i will try it for 4-8 weeks with the low dose Mast around 100mg a week and then ill judge. I dont want to use SARMs since 1.) my knowledge about them is even worse than my knowledge about roids and 2.) they are quite new on the realm and there are only few scientific studies regarding those if i am correct?
Do you have experience with RAD?