Check that kit out!

[Quero]

I raise my arms over my head all the time and air never leaks out.

I think your wrist seals may be too loose.

Quite possible. I don't own my own suit, and my arms were getting wet up to the shoulders.

Pull the neck seal. Vents more air quicker. If you have wrist mounted computers or compasses they will further restrict air flow.

Matt

Good point about the comp/compass/bottom timer/etc., but probably only true if the seals fit properly to begin with, as noted above by Pub.

As to the idea of pulling the neck seal to dump air, is there a risk of getting a bunch of water into the suit which might drag you down to the depths as a consequence?

Hmmmm, I'm not so sure ............. I've never been able to that on my suit ... either on my wrist or neck seals ............ at least not without massively over inflating the suit.

I see what you mean, but by definition, a runaway ascent would seem to represent a massive overinflation of the suit, wouldn't it?