XD I had like 3 curses... that's like 2,5 times it's defence... and it has over 500 HP. Snorlax is just that fat hahaha.
Now I remember, what was your scizor item? I didn't see any life orb recoil or leftovers recovery, and you changed moves so it couldn't be a choice band... what was it? I sugest you to give it a life orb.