What Cummins 24V chips/ tuners/ boxes/ you like or not?

Was reading through the thread and realized I didn't actually answer the question...I never got to wild with mine but did run a borrowed Superchips (just a fuel box I believe) for awhile. Had to be careful when it was wet. Sideways at 60 in a 2500 4x4 wasn't exactly fun lol. I liked the tuner though. Seemed fairly safe and I could adjust for tire size and what not.