Eric Sedletzky
Contributor
Doubles are a pain in the ass for basic recreational dives. For tech yes, when you need the gas, but a set of small doubles for basic dives to me is not the most streamlined setup on many levels. First, it's an extra reg set unless you just use one post. That's two regs in for service. As has been mentioned, two hydros, extra weight, top heaviness because of the manifold and twin first stages which affects trim and has to be accounted for, more drag underwater, a pain to hike from the car to the beach/boat/pier/ and back, and at my lds at least, they charge for two tanks for a fill even if it's just a top up.
That's why they make big singles these days, so we don't have to use doubles or triples anymore like they used to back when all tanks were small.
That's why they make big singles these days, so we don't have to use doubles or triples anymore like they used to back when all tanks were small.