Soooooo, a bit more about the original topic. I've considered the carbs about 95% dialed in, but the last bit hasn't been so bad as to inspire me to worry about it. At one point today at Cars and Coffee I was discussing Webers with a friend who has triple side-drafts on his Aston Martin DB6 and I was pointing out the air-bleed screws that are used to balance fore and aft on a single carb. He didn't know if his even had those, but then he pointed out to me that the air-bleed screw on one of mine had backed out and was almost falling out. I tightened it and checked the others (all good). On the way home I noticed that my idle was now steady at 1000 RPM (used to go up to 1300 when warm), and that I had almost none of the popping in the carbs I had noticed. I think I am now within a couple of percent of perfect, so I am happy. A little more tweaking should do the trick. I'm feeling a lot more comfortable with Webers now.
And now back to our irregularly scheduled thread drift.