Not one dive shop owner, with whom I've discussed the differences between the BP/W buoyancy compensator and a conventional jacket/vest style BC, be it back inflate or jacket style, has ever been able to explain to me how the BP/W is more "technical" or "complex" than the other styles of BC's.
My God, the BP/W can't be any more simple !!!
You put your arms through the shoulder straps, just like you do with other BC's, you place the waist strap around your waist and fasten it, just like you do with other BC's (minus the fact that you have to secure a bazillion other things like cumberbunds, other clasps, etc.), inflate the bladder, just like you do with other BC's, jump in the water and deflate your bladder to descend, just like you do with other BC's, and, once at depth, add or release air from the bladder to maintain neutral buoyancy, just like other BC's.
I guess I'm just a dullard and dolt, but I really don't see a difference ?????
A BP/W IS a "regular" BC.
the K