what dose of primo?
I truly think if you run a gram of primo, you are going to absolutely LOVE the effects; you will get HUGE bro, with minimum bloat assuming you run an AI. Please please please run like 25mg Aromasin ED. And then I would also run some Proviron ED, 50-100mg...
Please keep a log and keep us posted how it all unfolds; just please...i cant stress enough about the usage of an AI (I would use Aromasin at 25mg ED), as bloat and gyno becomes a serious issue at those dosages. Also, if you run the proviron, it will bind to the SHBG, effectively increasing your free test by A LOT!! Then also, since the primo is a DHT deriv, you can expect to maintain most of your gains and be fairly hard at the same time.
Best of luck!~