Hi Nugget,
I installed it myself, the longest was to wire in the foot pedal connections, having soldered and heatshrink every connection.
As for the calibration, I didnt have to do anything really apart from take it for a drive, I dont have too much issue with over run unless it is a steep decline.
All I needed was the instructions supplied and a good copy of the wiring diagram, AULRO, and away I went.
the best investment I have ever done with this truck

