Vets on here can word it better BUT
Sustanon at 250 is pretty pointless, I’m sure you naturally produce the same amount or near enough so it wouldn’t be worth shutting your self down. Never used masteron so couldn’t say.
I’m currently on sustanon 250 at 2ml (500mg) gains are good. But dependent on your diet and training.
On the boxing side of things it doesn’t matter if your on your 50th pro fight or training for your first. Steroids in a boxing ring is bad news, for both fighters.
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