I’ll give you my personal experience and a summarized version of my research.

Here mostly for TRT+

225mg test E per week- pin daily
125mg mast E per week- pin daily
No continuous AI. Just armidex .25 as needed.

Mast doesn’t really “block” Estrogen so much as it masks Estrogen. That being said I only add mast when I get down to an ultra low body fat. Which the lower BF also helps to mitigate Estrogen.

Mast has INCREASED my oil production and added acne! Neither are bad. Both manageable. But i have cycled Mast three times now and each time it is present.

I recognize the price difference between primo and mast. But my next purchase will be primo over mast.

As for lifestyle on Mast. I am definitely more “trigger happy” and have an underlying sense of frustration/short temper with ignorance. Road rage. People taking too long to decide. Dumb questions. I am so “antsy” and ready to go that any type of delay is aggravating.

Sexually I am prone to premature while I’m on mast. Desire is definitely there but it can be difficult to manage endurance.

And be weary of prostate issues. I find I urinate a lot more on mast. Both as a result of it removing water retention and the prostate implications.

You do you. But I would do primo. The added cost is sofa change when you look at it daily/weekly.

Any questions I would be happy to answer them directly…just throw some Karma my way. --

Master on has always kept me appreciably tighter, even by itself.

Nolva used to do the trick... not anymore. Disgusting fat people spiking estrogen into everything nowadays. Even in the vegetables.

I'd recommend aromasin on hand or dialed in from the start.