Fucking awesome video! Man you know how to made those videos! At this point where you change the size of your tyres you will need a rear locker or ATB diff because TC it's not enough anymore.
I presume you did have a hawkeye scan, right? When I bought my disco it had the amigos on as most but once a friend scanned it, it proved to be just an old fault code. Been going with no problems past 2 years. Maybe a bit lucky :) Good job out there