@bugsysiegals said in BL Touch Terrible Accuracy - Downgrade Firmware:
I'm getting a window popping up for manual bed probing ... I don't see this in the what's new and don't recall this before ... is this a new feature that should be done every time homing Z with the end stop?
When you commented out the M558 in your config.g the firmware defaults to manual probing (M558 P0) when you call for a probe (G30, G29) that's the pop up with jog buttons.