Originally Posted by
marclaukien
I mostly dive CCR now, but a few weeks ago, I took a sidemount course with Brian Kakuk. The initial motivation was to get into caves such as Ralph's cave (Abaco), which are absolutely stunning, but definitely require sidemount (a back-mount diver, if he could make it in there at all, would leave a trail of destruction behind him).
I must say, I really like side-mount. It's so comfortable and simple. Some say that sidemount is more difficult than backmount, because you have to change regulators every 200-300 psi or so. I didn't find this very difficult, and it's definitely not more difficult then the endless valve drills to shut down the manifold. With sidemount, you have true redundancy, with backmount, you don't.