I think Mal has covered it quite well but there is one thing that I'd like to add ...
Quote:
| Originally Posted by NarkedAtZero Like this I could hold the stop easily, but I ... plummeted like a stone on descent, couldn't really get comfortable underwater. |
The thing that I found when moving over to twins from a single was that the change in weight of gas is increased - with a single 12 you have approximaltely 3kg of gas and with twin 12's about 6kg - so at the beginning of the dive you're always going to be a bit overweighted. It's just making sure you're not underweighted at the end
