Thanks guys for the good replies. I meant the last item on, regardless of whether people are using a BCD or horse-collar. The point about not being excessively weighted is well taken, likewise avoidance of becoming a Polaris missile when the belt has been dumped. Interestingly the USN diving manual supports the 'WB last on' practice. The arguments against I don't find compelling, so I will stick to it. Once again thanks to all of you for taking time to reply. ATB, Nigel