We both carry pony bottles on all dives and the cuff is a good way to mount the bottle onto the BCD.
Good spring tension.
Does just what it is intended for. We like that the spring has more tension than most carabiners.
I and my dive buddy wife both have Sherwood Alum 6cf pony bottles which have become permanent parts of our dive configuration, used on every dive. After 15 years of diving and instructing all over the world, we have come to value the redundancy which a pony bottle gives. She attaches hers alongside her 80cf. I carry mine under my right arm pit on caribinners. We both hang the second stage reg around the neck with surgical tubing. We highly recommend the 6cf pony for the extra safety it brings.
Slips around if on a bare wrist but great if on a wetsuit.
This set of three lights is a great buy and has everything you need for night diving. Very glad we had the little strobes for tieing onto the tank since we discovered that several places in the Caribbean are forbidding the use of cylome sticks. We especially like the way the large and medium lights attach to the BCD. Best lights we have ever had.
Our previous travel bags got torn from baggage handlers grabbing the side or front pockets to lift and throw the bags. I watched them do this from the plane windows so I knew how it happened. This roller back pack has good stitching around those pockets but best are the handles both top and bottom of the bag. I went so far as to write in indelible ink, "Lift here" and put arrows pointing to the top and bottom handles. I put duct tape on all the pockets and wrote, "No Lift". The packs came thru well on our just completed trip to the Caribbean. The bags have all the necessary accessories we want on a scuba bag: backpack carrying straps, good heavy wheels and heavy duty pull handles (very important on a heavily loaded bag). I wish it did not weigh 15 pounds unloaded since airlines are getting picky about weight limits, especially island airlines in the Carib. But I guess weight is the unavoidable tradeoff for a heavy duty bag.
The carrier is good if you have to carry a couple tanks a long way over ground or a lengthy dock from you car. The straps are a bit cumbersome but ok with practice.