Not sure of formulas or what but I think Superdrol might be the most powerful mg for mg. Or that oral tren stuff, methyltren or whatever it is called which comes in mcg measurements and is extremely toxic.
Stuff like superdrol, dbol, halo, and tren are very powerful mg for mg. Oxandrolone you have to run in higher doses to get the big gains. At a light dose you will still get harder, more vascular, and put on a little bit of size. I think when I first started all of this there was a website that had a chart with a scale of 1-10 with strength. ?