| Imported post THe advantage of twin 7s or even twin 10s is that they're light enough to use as standard everydive kit (I don't use anything other than my twin 10s except in the pool). Twin 12s are for me on the borderline between everyday and special use, guess it depends on your build and fitness etc.
Also depends on what BCD you've got: you can get away with twin 7s without a heavy-duty BCD, but for 10s you'd probably want something more substantial eg Buddy Commando or Tekwing or one of the more expensive wings perhaps
HTH
Steve |