I like the idea of spreading the weight around and will look at that as a sensible option.
The idea of not putting too much air in the wings doesn't hold for me, assuming that you are sent to the surface unconcious will the rescuer remember to only put a small amount of air in your wings or will someone turn you over when you get to the surface?
I assume that all OW trainees are taught to take off their gear and put it back on again underwater (as I was) and I can see some trainees hanging upside down holding their BC.
Actually,
I just completed my classroom and dives for Rescue diver today so with it fresh in mind. If you are brought to the surface unconcious the diver will inflate your BCD and lay you on your back to check if you are breathing. In this instance the wing or back inflator gives a great stable platform and is easy to tow. With these type BCD it is easy to do a full lay back when fully inflated it is just hard to stay vertical.