Trying the drive with side sliders is rough. Instead there are three flight modes:
1.) "Default" allows fully control of the machine. SAE excavator controls on the sticks and the tracks are driven by the side potentiometers. Kind of awkward, but will be needed for advanced maneuvers.
2.) "Drive" leaves the left stick as boom/slew, but reassigns the right stick to the tracks. Much easier to maneuver like this.
3.) "Park" has the standard SAE controls on the sticks, but restricts the track channels to a flat zero travel curve. Effectively disables the side potentiometers. Prevents the machine from running off a table from accidental inputs. May have had a close call one evening