Hello,
As everyone has told you the difference I won't. But when teaching I prefer a pony. If I ran into an out of air situation I can unclip my pony clip it to someone and back away. Not going to make another poblem. A spare air might bring you to the surface from about 40 ft. I don't know your SAC rate. It just does not hold enough air.
As everyone has told you the difference I won't. But when teaching I prefer a pony. If I ran into an out of air situation I can unclip my pony clip it to someone and back away. Not going to make another poblem. A spare air might bring you to the surface from about 40 ft. I don't know your SAC rate. It just does not hold enough air.