lever = solution in search of a problem. Added complexity (in construction, if not necessarily in use) where complexity not required, to no discernible benefit. However, to those who like it - dive on.
Weight belts don't work well with BCD's because a "plain" BC with belt probably would cost far less then a BCD loaded with gimcrackery and integrated weights.
IMO.
I like my "stuff" on the left side, so I put it all there - gauges, wrist-mounts, lights, pocket, etc. It would be easy for me to re-route everything to the right if I were so inclined, as could you. In fact, the inflator hose on my wing is centered. I unscrewed it, and turned it about 1/4 turn so it goes over my left shoulder. Could have done the same to the right. I'm not sure how I would do that with the lever-thingy.
In any case, fooling with equipment is one of the fun-est things about diving. Have fun.