I would guess bro. I love mast when on a TRT dose of test. It is like a test enhancer. I run a half dose of the mast compared to the test you can get away with even 1/3.

Oddly if I go over 1/2 I get estro sides which I am very sensitive to. I think is because the mast has a stronger affinity for the androgen receptor and leaves a lot more free test which can aromatase. I do 10 mg of nolva ever 3 days and my muscles harden up nicely.

Another benefit of a strong androgen. They tend to suppress SHBG. More free test or whatever other compound you use.