Hi, I just wanted to highlight what I think is a small bug and perhaps provide enough information that makes fixing it easier. Thanks!
Mach correctly saves changes to the G73 retract setting one defines under "Config>Ports & Pins>Mill Options"
However, when it starts up again it fails to read the saved settings and defaults it back to 0.1".
The issue being that since the retract is only to break the chip the 0.1" pull back is rather large, and a value of 0.01" with no dwell would be much nicer in certain cases.