Hi @cdillow, how well is using the Scanning Z probe as the only probe working out for you? I'm considering doing the same, but as you pointed out, there doesn't seem to be much guidance on exactly how to go about doing this properly.
Have you found that your Z probe trigger height is consistent, or does it change with temperature, in which case you need T compensation?
If you have done some temperature compensation, how did you do it?
Just thinking out loud here, but my hope is that I only need to find Z=0 once (or Z=0 for each bed surface I use) and the M558.1 calibration will do the rest.