Some friends and I go out and me and a buddy use WD-40 on some paintballs (not a lot just enough) into the bag of paintballs we are using then put them in our hopper. This gives you three advantages without harming your gun
1. Lubed balls= faster speed out of the barrel. 2. Lubed balls= keeping your gun oiled (barrel) 3. Lubed balls= ...ouch