just have nolva on-hand for the added assurance.
also, run the Osta for 8 weeks straight at 20 mg (that's a full bottle of Ostar1ne)
i think you'll like the results man. i'm doing my first run with it right now, i'm 2 weeks in and the muscle hardness, vascularity and slight leaning out is already taking effect. my waist has gone down a little bit too but i haven't lost any weight despite being in a pretty large deficit.