Not being a jerk,but, besides a quick release buckles and such, what exactly is a point of back inflate vs BPW?
I understand people like jacket BCD, for encased feeling.
As far as I can tell, all back inflates are copies of BPW. If you go with pockets, you can put those on a harness. You like many d-rings? You can put as many as you want and where you want them in single piece harness.
Travel friendly? Alu back plate, or better yet, kydex plate and wing is not that heavy anyway. So, what is a point?
After all being said, I am not condemning non BPW divers,just being genuinely curious.