I disagree that most divers don't go below 60 fsw or 100 fsw however. That depends on where you dive and how often you dive. The "suggestions" for depth are just for when you are a new diver. After than you can either take more classes or simply get some experience. Recreational diving is usually considered no deeper than 130-140 fsw. It's all up to you however.[/QUOTE]
I know this is a dive light forum, but I have to comment on this statement. Diving deeper than you are qualified to dive is dangerous at best, the deeper you go the greater and more the risks become, therefore you need training to manage these risks, one of the main concerns being gas management and deco times, most agencies limit novice or "open water" divers to 18 meters(60 fsw), this limit is indicated on your cert. card and should be adhered to. Also remember if the messy stuff does hit the fan and you are diving deeper than you are qualified to dive you may not be covered by your insurance policy, depth limits are there for good reasons!!