Hello all, I am a certified diver who occasionally sets up Rendezvous dives with local dive outfits to avoid bringing all of my bulky diving gear. On occasion, I encounter a tricky anchoring situation in over 25 feet of water depth. This is beyond my comfort zone to try a free dive to the anchor to orient it for proper bite (set). I am strongly considering purchasing a DXDIVER Pony Bottle Diving Kit, 13 CF (1.9 L) with conventional hose, regulator. My thinking is to use this for setting anchor or dealing with a wrapped propeller. That is, such as a lobster pot line wrap in open water (not a dinghy rode wrap in a calm anchorage). The cost at Amazon is $399.00 By the way, I have seen ads for 0.5 L bottles (mouthpiece attached to tank) being marketed for recreational use (video showing young kids using it) which I find quite alarming! This is a disaster waiting to happen! Thanks for your thoughts ( preferably from professional dive operators ).