I'll try to be clearer.
On the bike that went missing, I had a complete hack of a setup--a cutdown pair of the old triangular tri bars, set up so the grip was on the triangle's side. It was comfortable for short rides, but left me wanting more adjustment for longer rides.
My issues are wrist/elbow/shoulder, rather than hands and back. The key for me is that my hands be in a tilted position (like a North Road bar), rather than vertical (like standard drop bars in the drop) or horizontal (like standard flat bars), to keep strain off my elbows.
What I'm looking for is something with the ability to move your position up and down--more or less upright--that the four positions on a standard drop bar give, but with the bar bent such that all those positions give some angle to the wrists (like North Road bars do, or like the drops and tails of dirt drops do).