* Well, I've not done the CPS Tests yet (on a known good CPS) because, after the first night of the car starting (and apparently running smooth), the second day was very different.
It then started a little hard, and ran rough, with some apparent skipping....
I took the spark plugs out and inspected, and they appeared pretty clean (except one was slightly dirtier -- so I cleaned it and replaced that wire).
The next day, I swapped the ICM from the other Reatta, and it started, seemingly running a bit better, but not perfect.
The following day, it would not start at all.
Checked spark: NO spark (yes, I know: how could it have started and run after the CPS job, if there was no spark then).
Checked ICM power: 12 volts
Checked power to CPS: only about 6 or 7 volts.
That's where I left off, and will address the ground to the ICM tomorrow... (note: I don't have another ICM to swap... maybe they are both bad, or there is some serious grounding problem?)
Oh, just for shiggles, I did visually inspect the CPS, but didn't see any physical problems (of course, I can't see the whole thing with the balancer somewhat in the way).