That one works. My thinking, however, (having been a lifeguard in my youth) is that if it keeps a ring bouy line free for the next toss, it'll work for a cable - and experience has borne this out. Hold your left hand (assuming right-handedness - sorry, Kimberly) palm up and thumb forward with one end of the cable between thumb & index finger, connector hanging on pinky side. Grab long end of cable with right hand, palm down & pinky out - you should now see, proceeding out from your body, connector, left fingernails (pinky closest to you), left thumb, right thumb, right knuckles (pinky farthest), rest of cable. Run your right hand out the cable as far as you can, grab there, bring it back under the left, and lay the cable across the left palm pinky-to-thumb. Repeat. This can be done very quickly, and without taking your eye the drowning victim or cute barmaid, depending on situation. It will uncoil smoothly every time. Has to - a life/your chances for the night could very well depend on it. And +1 on the velcro straps! Or, for mic cables, you could put a cable spool on a mic stand & reel them in connected.
Peter