That's a tough one. Not much choice out there, Wainman is the second bar i'd take after Ozone's due to the plastic depower rope, but it's not adjustable either.
Look into the Epic's new 3G bar, Core, Zeeko - all of these seem to answer your criterias.
I'm facing the same dilemma - got 3 Ozone bars (S/M/L) that I really like for the safety, plastic depower rope and simplicity, but I really hate for the total lack of adjustability. Why do I have to carry 3 of these when I travel if with some other kite brands it only requires ONE????!!!!!
As a side note, being used to the smoothness and finger-burn-free operation of bars with a plasticized depower rope, I'm finding that I really don't like bars with a "normal" rope depower. Feels wrong...