Thanks egra - I visited the site and got some useful info (good 'ol webbikeworld comes through again

). Interestingly, the wbw guy had an easier time with the top nut than the bottom - just the opposite of me. Probably just depends on where the nut flats are on any given bike. Anyway, it was a bugger but I didn manage to adjust top and bottom, and turned them so that the same amount of the adjuster barrel showed top and bottom, which is how they were before the adjustment. When I measured like shown on wbw, I think I had maybe 4+ mm. Now it's about 1.5.
The wbw guy says Ducati recommends balancing the throttle bodies any time you adjust the cable (the manual doesn't mention this). He held off getting the throttle bodies adjusted, but still says the cable adjustment was best thing he'd done to the bike to date and that it made throttle response more linear and eliminated about 95% of the on/off jerkiness. I just finished and was too tired to gear up and test ride, but just from trying it in the driveway it seems smoother with less of that little hesitant hiccup\cough when you give the throttle a good twist.
I'm curious if anyone here thinks the throttle body adjustment is necessary, and if so, why? I'm about 1k miles from my 7500 mile service so if it is necessary, I hope it can wait until then.