with the 600 mg of test E you will still gain more muscle and be stronger but with more bloat.
hm hes talk mast though, as far bloat goes, there wont be bloat on mast,either ester.
typicaly one just gains fat on this if overeat, but not so much bloat.
as for the opi question, well once the mast e has properly kicked in, itll blw right the fuck out of 300mg mast prop.
its dounle the dosage lol.
the only time where this would be diffrnt is at the bare start of tking it, then the prop would ifrst make the boom, but the e will take over easy and clearly and soon.