So, my first roast today -- using the floating probe -- went way too fast. Beans look very nice, but really it was up into the 400 range in 2-3 minutes. So, for the second, I turned off the UFO heater as soon as I poured the beans into the pre-heated roaster. It was looking good, but the probe knocked the whirly arm off and rotation stopped, so I had to abort the roast.
I had been floating the probe through the gap in the spacer ring, but I guess that just gives it too much leeway. As soon as it all cools down a bit I'll get out the dremel and make a slot for the probe..... Yeah, right, I was 'sposed to do that anyway, but....I do tend to learn the hard way. As my friend, Dan, likes to say: "There's never time to do it right; there's always time to do it over...." Sigh.....