Agreed on the Predator, overall a 'good' product. Support issues and upgrades can be a hassle, regardless of programmer brand. I am looking forward to receiving the new hardware/tune that is certified for the C4500.

The basic LB7 tune surged, both on my 2001 K2500 and more noticeably on the 2004 C4500. I think this 'surge' is the 'hunting' you describe, when on cruise control.

Kennedy's custom ECM tune for the LB7 doesn't hunt or surge at all on cruise control, loaded or empty, on tow tune or performance tune settings. If it came in the handheld package with the features of the Predator...now that would be a great thing!

JK, have you ever offered your LB7 tune as a custom downloadable tune for Diablosport users? I'd gladly be your first C4500 customer!