I meant to add: I used a Dive Rite Rec EXP wing. It is 45# of lift. It works great with double 120s, which are 7.25" diameter. I think it might be a bit too narrow to give full lift if it were to be used with 8" diameter tanks (e.g. HP130s). Also, I definitely would not want a wing with any LESS lift when using steel 120s. And, though they market is as also being good for use with a single tank, I would definitely NOT use it for single tank diving, either. It's too wide and too much lift (i.e. too much empty wing flopping around).
I later bought a Dive Rite Classic XT wing, which is 60# of lift. I use that now when I'm carrying deco cylinders.
Final thought: Be aware that there is more to a wing than just its lift. I have now owned wings from Dive Rite, HOG, Deep Sea Supply, OMS, Halcyon, and Oxycheq. What I have found is that the shape of the wing determines where it gives its lift. This has a direct effect on your trim. With my setup, both my Dive Rite wings allow me to get flat in the water with just my SS BP and (depending on how cold it is) a soft V-weight. So did the OMS wing. With the Oxycheq and Halcyon wings, the only way I could get flat in the water and stay there (and keep my fins still at the same time) was if I were to put a tail weight on. Otherwise, with those wings, I was constantly fighting to keep from tipping head down. If I positioned myself to be slightly head up, then the Halcyon and Oxy were fine. I could stay slightly head up and still. But, as soon as I would go truly horizontal, with either of those wings, I would start to tip forward.
I attribute all that to the difference in the shape of the wings and where it positions the actual air inside when you are in different positions. If you look at, for example, the Halcyon (Explorer 55 is what I had), it's wider at the bottom. Thus, it seems that when you get totally flat, more of the air in the wing will move to the wider part - i.e. towards your butt. That's because when you are flat, the wide part of the wing means it will float up higher from the back. In contrast, both my Dive Rite wings are pretty much cylindrical down the sides. They stay roughly the same diameter from top to bottom. So, they keep the air more evenly distributed between your head and feet when you get flat.
I now only use my 2 DR wings for diving doubles and with those, I can get a little head up and stay that way (while keeping my fins still) and I can get flat and stay that way. All without needing a tail weight, which I really didn't want.
Final final thought: Double steels may be more head heavy than the single tank rigs you've been diving. To avoid needing a tail weight, no matter which wing you get, you MIGHT end up wanting fins that are more negatively buoyant than whatever you are using now. If you get some doubles and start tipping forward, more negative fins is at least something to consider. When I dive dry, I'm always also in doubles and I use the Hollis F1 fins because they are among the most negative fins that I know of. Fortunately, they also work EXTREMELY well for technical kicks. ScubaPro Jet fins are also reputed to be very negative in their buoyancy, but I have never tried (or weighed) any. My XL sized F1 fins are 2.0# negative in fresh water.
Just some additional info to keep in mind when shopping for a wing...