Listen I don't agree with dcs. 250mgs of sust is going to give you minimal gains. I think it is a waste. If you want to take that low of a dose take cyp. As for the gyno, you should never take test without an anti-estrogen, period, so I assumed you were taking one. With 10 mg of nov a day you will be fine at 500mgs of sust a week. As for the primo it is very weak and even at 400mgs you will not gain that much. This notion that you build lean muscle with primo is a crock of shit. Yes, you build some muscle without the water retention but test is far more anabolic so you will build more lean muscle tissue with test. Just take an anti-estrogen, eat well and you will not bloat. When youy are ready to come off get some clomid and cytadren and you will end up bigger then any primo cycle you can do. Think of it this way, primo can be safely used by woman and I know woman who take 200mgs a week of it. True it is safe, but it is so safe because it is weak.