Just remain aware that because of the crotch strap, it is absolutely critical that the diver in a BP/W then put his weightbelt on last, after his BP/W (including crotch strap) has been fully secured.
Improper donning procedures here can cause the weightbelt to become trapped underneath the BP/W's waist/crotch straps and thus, no longer ditchable.
Sorry for shouting. Twenty years ago, this "weightbelt absolutely last" rule used to be very strongly taught in Basic (pre-OW) training, but with the advent of Jackets where there was no crotch strap to cause this safety problem, it isn't drilled in nearly as strongly. As such, it has become very common to violate this rule (with Jacket's, its no harm, no foul), and it has become the average Rec Diver's dirty little habit, particularly at "Full Service" dive operations where they carry the rig to the diver sitting on the stern platform.
As such, people contemplating going from a Jacket to a BP/W need to be aware that their donning procedure's *sequence* has gained significant importance for their diving safety.
-hh