| I had an O'Three RI 2100 compressed neoprene suit for a few years (sold when I, er, expanded to not fit it any more) and never experienced this problem with a shoulder autodump. I did tend, though, to dive it fully open so I'm not sure if I would ever have triggered the problem you mention. A gut instinct response would be that spare material around the shoulder 'unfolding' to accomodate more air would have a far greater effect than stretching of the material itself.
Tim |