Hi,
I've only ever experimented with mcSurface Wizard, and it worked as advertised, but why are you using it repeatedly?
Really its supposed to probe the bed of the mill and thereafter subtlely manipulate the Z axis to have the toolpath be absolutely flat
when the bed of the mill is not. The anticipation is that you'd do it once and then leave it alone.
I found that the probing routine was too slow. I use Autoleveller, a software utility that probes a PCB blank and modifies the Gcode to accommodate any
warp or bow in the PCB blank. It works so much better than mcSurface Wizard.
Craig