What's the deal with training and bending, where is the window and what are my limitations. I worked as a surf lifeguard for near on ten years before I started diving so now that the bear gut is catching up I'm becoming more and more desperate. At the moment working civils, time's the issue, but still what is the deal with training and diving. I'm looking for imformed responses please, I work with divers who have all heard something or know more than the other. If any thing I think the boys from the Navy will know the deal.