IMHO, for lean mass cycles comes from your diet, its not so much of what AAS you use (although it does play a part) but your diet contributes more to achieving your lean mass, i.e. if you're looking for mass in general then your diet will be high in calories, high protein and moderate fat intake, but for lean mass then your diet will be low calories, high protein and low fat intake and maybe some cardio. just my 2 cents bro.
peace