I wouldn't worry about the hose protector they don't really do much except trap salt and dirt and wear things out faster. If you are worried about the hose take it to your local tech and they can look at it. Next question what kind of diving are you doing that requires a stage bottle? Are you using it for deco, or a penetration dive. Just looking to clear that part up. Questions are stupid, folks are just wanting to make sure you are pointed in the right direction and haven't gotten down a dangerous path.