Budde,
Thanks... after 10 hours of learning a few ins-outs of the new machine, active leveling now works!
Must have been an error in translation between "turn the turning things" and specific screw / jog wheel.
Am printing a first article with PVA support now and fingers are crossed.
This U-3 is a big difference from my faithful, 3 year old TAZ 5.
I'm really going to miss the ability in Lulzbot's version of moving extruders, beds and filament right off the Cura interface.
Thanks again!