I'm diving intensively with the power tech and never had any problems with the weights falling out. You just have to configure it right the first time and will never have a problem with it ever!
Very easy to adjust with the back pockets and don't forget, you can attach a total of 18kg/32Lb of weights, to the jacket.
From stability/comfort/boyancy point of view.....the best jacket I ever owned/used!!! I never tried the SQ QD, so I will not comment on that one, although I'll prefer the BD.
Depends what you really want, a normal BCD or a back inflated (wing) model.
Wings are the most comfortable to me, although that's my own subjective opinion.
Hope to be of any help, although I replied may be too late.
Very easy to adjust with the back pockets and don't forget, you can attach a total of 18kg/32Lb of weights, to the jacket.
From stability/comfort/boyancy point of view.....the best jacket I ever owned/used!!! I never tried the SQ QD, so I will not comment on that one, although I'll prefer the BD.
Depends what you really want, a normal BCD or a back inflated (wing) model.
Wings are the most comfortable to me, although that's my own subjective opinion.

Hope to be of any help, although I replied may be too late.