yes man you will gain serious freakin mass. I used helladrol same compounds but different company. i did exactly 50/50/75/75/100/100/75 and gained 25 lbs. solid dry hard gains. Strength gains were awesome also. I was practically repping some of my 3 reps maxs. The only warning i give is i got really hot headed, never with someone personal, but strangers beware. also the amount of water you need to drink and nutrients you need to feed your body is extremely heavy. if i was not drinking at least a gallon of water i would start cramping at the gym. my pct was very extensive and thought out thoroughly. not a stack to fool around on because your taking twice the recommended dosage.