I got into a bunch of mud last weekend and just turned the ESP off, seemed to allow enough wheel spin to clean out the luggs on the mud terrains. With 10,000 people and 1,000 trucks if I'm stuck I wont be there long. The trails are really tight and hilly so I will use 4 lo for them, let the engine do the breaking and try not to slide into the trees. It will be interesting to say the least. I'll get plenty of pics and hopefully won't break too much. Never had a vehicle with a computer involved, I am sure I will miss my Detriot Locker