Ok......... call me a bluff old traditionalist if you will, but surely you need the same weight configaration for your bouyancy regardless of what rig you use?? Whether your at 40m or 15m.
Yes I have more weight on my belt. 6kg on my belt and carry 5kg on my tank in a shot pouch.
Apart from lugging your kit in and out of the car, and on and off boats then what difference does it make? Unless your shore/shallow diving.
Now were getting somewhere
I used to dive twin 10s and 2 side 7s and was just starting to dive some good wrecks before all the PFO shit kicked in. After failing post op bubble study I decided to go back to basics. Lugging a empty single 15 about after a dive rather than twins is better for me. Although lugging stuff about after a dive is what causes the shunting of blood across your heart an that's not good
Also I dive 40% all the time and to get 2 good dives out of the twins was ok if I wanted to stay shallow for the 2nd dive and come back with about 30 bar. Now I have 2 good long dives and come out with 50+ bar.
I'm still convinced that 2/3 completly seperate air sources is the safest way to dive.
Totally agree, and hopefully one day I will have another set of twins. I keep joking that I will twin up my 15s. I did have a go with my mates 12s a few months ago and loved them, so easy to shut down. But not as friendly as the 15 to throw off after the dive
Ali
Balders