[Gareth Burrows]

Unfortunately, I tend to agree from Mark. You didn;'t learn that drysuit is insufficient buoyancy for a a twinset - it should be more than ample.

We regularly practice failed wing ascents using the drysuit. Apart from being more difficult to hold stops (though not being as familiar with the practice) it should be no real drama.

The tendancy to overweight can be tempting, but it just causes so many problems, and exposes you to risks, that it's really not worth it.

What leassons can be learnt from this -

1. Overweighting can cause small problems to evolve into large problems,
2. Weight checks should be done often.
3. We should, IMHO, be correctly weighted with virtually empty cylinders. Not 30 bar. Not 50 bar. But next to nothing. If we are having to breathe our cylinders down to nothing because of a problem, the last thing we want is to lose control of buoyancy then as well. If you do your weight checks with 50 bar, then you might as well consider the last 50 bar unbreatheable.