I'm not following the question, perhaps. I believe T is an aromatizing androgen (a Δ⁴-3-ketone) that still provides benefits from aromatization with combined AI use. Primo is a 1-ene that is roughly ~1/4 as anabolic on a per-dose basis as nandrolone in humans, it does not aromatize. Masteron is a 5α-androstan-3-one, non-aromatizable, that has never been given serious consideration for clinical or therapeutic use for wasting conditions (anemia, HIV, etc.) because of its low anabolism in humans. Rather, it seems to function primarily to reduce estrogen uptake into cells, and was used for many years in women as a breast cancer drug in treatment-resistant metastasis.