You aren't limited to DSS wings, although they offer a very good range of lift among their LCD models (20, 30, 40, 50, 70). If you get to a point where you need more lift, you could simply go with a bigger DSS wing. Or, for that matter, you could try out a Dive Rite, an OMS, a Halcyon, whatever. I have a DR Rec and a Super, and a Halcyon Explorer 55, plus a SeaAirA, and dive them with several different SS BPs. That is the beauty of BP/W - there is compatibility across most brands, certainly on the 11" OC holes. Personally, I use a STA, rather than just cam bands, although it moves my tank out from my body. That doesn't seem to to create problems.
For me, a 55# wing works well in fresh or salt water, with a DS and double steel 120s, plus two AL deco bottles. When I dive wet in salt water with the doubles and bottles, I use a dual bladder Super, for redundancy. But, at 77# it is frankly overkill, even with the negative steel doubles. Diving wet, with a single tank, even steel, in salt water, shouldn't require more than ~ 50# at most, probably less. But, I could be wrong, and my wife says I frequently am.
