Sport Function - Gear Cut

Does anyone have any definitive knowledge of how these two functions might differ. I have an external gear controllerconnected to AN1 and it appears to be functioning as intented but limited testing so far only on a vehicle hoist.

Both the switch function and external controller function seem to act in a similar way but tehre may be differences written into the firmware. Would be great to know if any as such differences. This is on a quite old Firmware version 2.103. If there was any updates specifically relevant to this particular function since that version would be much appreicated to know. thanks