SlugLife
Contributor
I 99% agree with everything Eric states with the acceptation that I personally feel that some of the redundant items are important.... Mostly, cutting devises and redundant gas supply. ESA from 50ft is a good option, but a 13 or 19 pony is preferable for me. Since I dive with an Air 2, , a back mounted 13 does not create any more "clutter" than a standard single tank set-up with an octo.
Redundancy can come in many forms. A pony/y-valve/sidemount/etc are perhaps relatively reliable and accessible forms of redundancy. However, redundancy can come in other forms as well. This includes skills, such as CESA.Cutting devices around here are always standard gear even for solo diving and it goes without saying. I carry three no matter what.
Pony? I have one, and if I was doing 60’ plus dives solo then yeah. But for just poking around the rocks in 40’ on a shore dive shooting a few fish then no.
One of my highly recommended redundancies is proper weighting. It provides redundancy for a number of scenarios including a BCD failure, or even jumping in the water with your air off. (more below)
What Are Your "Pro-Tips" for Safety, Redundancy, and Accident Handling
What are your "pro tips" (or amateur tips) for improving one's safety when diving? This can be equipment, redundancy, skills, training, mindset, pretty much anything! This can also be relevant to accident-prevention, incident-handling, self-rescue, other-rescue, etc. Disclaimer: Per usual...
While I personally have redundant air on EVERY dive, including shallow-ones, I rarely bring a spare-mask, computer, or light because I usually dive lakes during the day and can always just follow the slope up to the shore or swim up.
I rarely "criticize" someone who has any redundancy (I may mention improvements), simply because the diver with an "undersized" 13cu on their person, is almost always better off than the diver who has a 40cu collecting dust on their shelf at home.