I ended up creating a few different sized rectangles for basic sizes of wood i tend to use.
I did them with my largest bit, 1/4", with .5mm step down. Exported the gcode and labeled them appropriately, Surface_100x100, Surface_200x100, Surface_200x100 etc
Now when i need them I can just grab one and go. If I find it didn’t take off enough I lower my z origin by .5mm and then run it again.
-S