SeaJay once bubbled...
...About the differences between a jacket, a back-inflate, and a "bp/wings" BC at http://www.islc.net/~bayne/homebc.html . The differences go beyond the simple idea of minimalizing failure points and getting rid of the plastic pieces.
Very well written SeaJay. For anyone that has used a BP&W, as well as the other types of BC's, I think they would agree with you completely.
Like I said in my earlyer post, I haven't taken the Mares Syncro Tech (Back Inflate) BC out of the closet in nearly 2 years. And switching from a single tank set up with tank adapter and Rec Wings to a doubles set up with Super Wings takes all of 10 minutes.
My comment about the plastic parts was something I had always thought was rather ironic when used as an argument in favor of a BP&W style rig. I think the points you make in your artical are more appropriate when discussing the pros and cons of the different styles.
Scott