Ok - ran into two problems. First, I'm an undecisive bastard. Second,I'm a lazy bastard. . . .
I can't decide which bar height I want to run and I don't have the patience to buy two bars and fit them both with bar ends.
To be honest, the primary thing I dislike about the stock bar is not the height, but the sweep. It puts my arms at a funny twist that, in turn, puts my bad right shoulder in an uncomfortable position.
Since virtually every bar on the planet has a better sweep angle than the stock FZ6 bar, I've decided to start with a cheap fix. I ordered the FZ1 bar from boats.net.
The downside to this decision is that I don't like the look nearly as much as the Renthal or Pro Taper supermoto/street fighter types.
The advantages are:
1 - I know I'll have a bar with a comfortable angle,
2 - I can install or remove a riser kit in less than five minutes depending on my mood or the riding style I feel like going with,
3 - not having to mess with fitting new bar ends,
I'm still not certain that the FZ1 bar was the way to go.

I suppose time will tell. The good thing is that because it's so cheap it really doesn't matter if I don't like it.