At 16% bodyfat (which could be wrong anyway, a lot of people including myself have been way out at guessing bodyfat, even with calipers)
Masteron will be a complete waste, it only benefits people who are very lean, like 10% or less.

A lot of people out there think Masteron will rip them up, that is not the truth. Masteron and Winstrol will help achieve a dryer harder look for people who arr very lean.

At your bodyfat your diet is what needs addressed to achieve your fat loss.

Could you post a picture so we can see what we are dealing with? It will help us give you the correct advice in your current condition.