I will give a +1 for a bp/w. particularly a DSS plate. My sole reason is that, with an AL80 and drysuit, I only have 6lb of lead on my belt, the rest of the weight is on my plate (6lb plate +8.1lb add on). Very streamlined and comfortable when you have it on.
Also, if you decide not to buy DSS, I'd still give Tobin, the owner a call. I called when I was doing my research and his advice and comments made me think of aspects I wouldn't otherwise have thought of.
I'm not sure who Tobin is. The idea sounds good, last time I dove I had 28lbs of weight on me to get me down. It was such a drag carrying that much weight on me before I hit the water.