Hoopty, I've got an 8" rise on my bars, they're Supercross Pro bars. Basically 20" race bars. The bike I rode that inspired me to build this one was a JMC 24 and it had pro sized bars on it, I knew I'd have to put them on my bike, just because regular cruiser bars are so tiny. I think maybe they're good for racing, but forget about just cruising. The taller bars will probably help out a lot with your wheelies.

If you sold one or two of your RC10's, or that loopy PK, you could get a pretty nice Sport.
Apex, that mtb is sweet. I really regret selling my 94 Gary Fisher Aquila to my buddy. It was probably the best riding bike I've ever been on (well, that and the JMC 24). And, I just re-confirmed that feeling over Labor Day when I was able to ride it again when I visited my bud. I've been trying to get him to sell it back, but he won't. He feels the same way I guess.

Anyway, so I'm going to build a new chromoly fully-rigid mtb. They don't seem to sell completes anymore, so I'm building it from the ground up. I think I'm gonna get a Zion 660 f/f and go from there. What kind of tires are on your bike? I've got to get some decent street tires, since I'll be riding this bike to work thru NYC.