Excellent service.
However, I am not convinced about diving with more air in the suit preventing water from coming in. The air will migrate to your back and you won't have any at the front.
I also can't see how the valve would suck water in if the hose is connected properly. The only time I have had water come through is if I have disconnected the DS feed (to inflate a bag) and pressed the DS inflate button by accident (because I have been a tw@t!!)
Not that the above helps to solve the leaky suit...
