Ive tried every single decent pre workout and some shitty ones. Noxi-pro is the strongest. I enjoy white flood, for some reason its strong in ny body. I like assault for clean energy. Muscle marinade is pretty strong. Phenom amped is pretty good. Hyper fx is a good clean one. 1mr sucks dick, jack3d is at the bottom, neurocore is so/so, no xplode is lame, the old hemo rage black ultra concentrate was real strong, ragnarok was a decent one back in the day.. ive tried tons of others but thats all i can think of atm