Lump, the orings on the cure bolt also prevent damage occuring when balls are slammed towards the breach by the loader. Lemons ego is probably well set up, with a decent loader and good paint.
Poorer set ups, with overtly fast loaders and **** paint will be helped a modicum by the cure bolt. Barrel breaks will be less of an issue cos the paint otherwise damaged in transit to the breach will have one extra bit of cushioning over say any non-cure bolt model.