I've been juicing for like 2 yrs and I've been use as many as 4 stacks b4. I'm 6'0 210 about 9%bf. Out of all these juice I've been using, I 've never try anything like hurts like fina. After the 1st shot, site irritates and balls get sort of pain and I gonna use EOD. I give anyone of u props whoeva use fina ED for 6 weeks, hahaha!!! U guyz r nuts :D