I have an old Scuba Pro knife that might have a 7 inch blade that is solid through the entire handle so it works as a hammer, prybar, it has been a chisle and I have used it as an anchor to get a break in a stronger current off a point. Now not many of those drills could have been done with a 3 inch blade mounted to a plastic handle. I have never needed it to cut a single thing, with the exception of a sandwich. I wear it on my left inner calf and have never had it tangle in kelp.......my favorite place to dive. I also wear a safe knife thats perhaps 4 inches in length and its like a straight razor, and it lives in a pocket glued into the center on my wetsuit chest. It never moves, always in the exact same place easy to acess with either hand and yes the handle is larger in diameter so I can handle it with a gloved hand. I agree with the theory that one needs to be prepared for the unusual occurance, those are usually the ones that might get someone.
Bill, Dive often.......and safe
Bill, Dive often.......and safe