Well, shifter problem fixed. I had to take it apart to figure out the problem. Seems there is a ratchet with a cable size hole thru which the cable needs to run. The cable was not run thru it, but you couldn't see it thru the hole in the shifter housing. When it was opened up, it became pretty obvious.
Don't like how much rear housing there is, and will tidy that up later. Probably invert the stem when my back stops hurting.
The Sora bike is now a R7000 105 bike, replete with power meter.
