I broke down and finally bought a thumper. 2001 KTM Duke 2 LC4 640. It's a 625cc single.
Rode 75 miles today through the Santa Cruz mountains on twisty little back roads. Wow is this bike scary fun. I almost laid it down when I was leaned over and got on the gas. The back tire hit some water, but I just throttled out. It felt like I was out of control, but on this bike it's hard to tell since it handles so good.