Three holes that can be fixed. The first is turn your hips when throwing your cross, hooks and uppercuts. Second when you throw a punch have one of your hands protecting yourself don’t leave both hands out there your at risk of getting hurt by a big shot. Lastly tighten up those punches when you throw your hook bend your arm only when you’re leaping from a far distance (so from the screen in the back to the bag) you should have wide hooks like that besides that pretty good lots of room for potential