This mod will automatically adjust the cutting height. Additionally, you can change the height of the lowered state itself. You should only make sure that you lowered the cutter at a reasonably flat area.
With version 1.1 you can even adjust the height of the cutter in upper position.
Here’s the key assignment:
Shift + H —– Automatic on / off (default on)
Shift + N —– cutting high
Shift + J —– cutting down