Sparetire, drostanolone enanthate, as far as I know, isn't produced by any legit companies. Only underground and hombrew. So it'll be whatever dosage they want, probably 200-250mg/ml like tren enanthate. Paridhm, well masteron gave me about the same results as winny, and no sides. Now I don't get any sides from winny except low HDL, but lots of people get joint aches, especially when drying out precontest. Masteron will harden up your physique and won't give you joint aches, plus as it's not 17aa you can still run another oral with it, like winny, anavar, halo, to harden up even more. I'd rather use tren/winny myself as those are stronger, but hey, why not add masteron in on top of them?