Letro on hand for any gyno sides bro. Aromasin would be more to keep bloat down and prevent gyno sides from appearing while on. If you are not prone I would just have some letro just in case and run it as prop does not have much water retention at all.Thanks man. Although, It is probably unlikely that I'll have any gyno sides (as I didn't the last time I ran test prop) would you recommend aromasin or letro to have on hand just in case?