There are 7 main points of Sidemount advantage over the backmount system. Ease of streamlining equipment. When you need or want more than one cylinder, sidemount provides a very streamlined package. When correctly configured, sidemount can reduce drag and avoids contact with the environment.
2. Easier equipment transport. Most people find it easier to carry and wear two smaller cylinders instead o
f one large cylinder. Divers with physical challenges may find this a big advantage, especially in that it allows them to don equipment in the water.
3. Sidemount works well with many recreational diving activities making it a great way to expand your capabilities with a single basic configuration. Divers with physical challenges find that even when diving
only one cylinder, sidemount simplifies getting in and out of the water.
4. Increased gas supply. Using enriched air nitrox and an EANx dive computer,
You often have so much no stop dive time that you run out of gas long before you approach a no decompression limit. The ability to use two cylinders lets you enjoy more of this no stop dive time.
5. Accessibility. In sidemount, the regulator first stage and valves are in front of you where they’re visible and accessible. This makes it easier to spot and deal with problems
6. Adjustability. Most sidemount configurations allow you to fine tune equipment fit and trim during the dive to enhance streamlining and body position. Most divers find this makes sidemount more comfortable than other configurations.
7. Problem solving. With two-cylinder sidemount, you can handle an out-of gas problem without your buddy as your primary alternate air source.
