I've had success cutting with 12mgs or less (I'm 200-215 lbs. at any given time), but if you are looking for any size or an androgenic effect, you would be better off with 24-36 mg. I personally have not dosed that high, but that is what's said in much of the feedback. IMO, MOHN is good for stacking with other PH/AAS (probably more androgenic ones like 4-AD/Test).
I normally don't taper (or only for a few days at beginning & end), but probably should. I think all exogenous should be tapered in both the beginning and end.