Ok I just tested metric on both Darwin and the ESS and all seems fine, screen.set had no issues either so it has to be the Sim plugin
did have to make sure that the initialization codes did not have an inch gcode in there as that did look a little odd on first moving.
I just made a copy of a known good inch profile then edited the Machine setup units, units mode and motor steps per, in the new metric profiles.
And as a bonus I got probing to work today using the ESS, so its getting closer to being done.

Now I can get that probing screen written finally.