Great Part Two of the series...slickrock, which really is a misnomer since it usually offers great traction, really becomes slick when it's wet and muddy, & your tires are wet also...
I've always opted for manual shifting in both the Brute & JK6 when in 4lo in order to control rpms...especially during hill climbs. Apparently in the JL it is a prerequisite...have you had any feedback from your Jeep contacts in regard to both yours & Tonys experience with the throttle glitch?
Lastly, Code 1 is an outstanding rig...I absolutely love what they've done to the body and top...