I tried also several times masteron E or P with testosteron in a 1:1 ratio. I got also flakes on my scalp like scales which flakes when i rub my hairs. My libido goes up but also have hard time to cum when i have sex. It feels like my dick is numb and i have to do it very hard, otherwise i didnt have orgasm. Sometimes my dick also goes down during sex. My estrogen is also little bit elevated on bloodwork.
I think masteron also inhibit estrogen to bind to the receptor. So in that case even if estrogen is elevated , masteron inhibit the estrogenic effect through the receptor side, which can cause erectile issues. Also maybe shbg goes to low which can also cause this problems. Also the ratio from Test:estrogen:dht can be shifted which affect thoese things. Maybe its all of it or an individual thing which peopel react to it.
maybe I will try a high Test only cycle without masteron to check if i have the same and then maybe introduce masteron to check. On primobolan i dont get this problems. Can be that primo doesnt binds that much to shbg but i have to do bloodwork to confirm thoese things...