you will get excellent results from primo and that is actually going to be my next cycle... tren can cause you to be aggressive but so can DHT's... masteron is definitely doing that to me right now but tren will probably bring it out the most in you... keep in mind that prmo is a dht too so you would be running two of them and will still be aggressive... i definitely prefer primo though because there are a lot less sides and it is some of the cleanest gains you can get from anythng...