When not towing at highway speeds on cruise control i notice a very small hunt, speed varying up and down about 1/4 mph. When I install SMARTY on timing only for mileage I get a 1 mph hunt. I know the cruise control is controlled by the PCM. IS there anyway this can be reprogramed to eliminate the hunt? When i used to install a CC on a car, J>C> Whitney sells them, it had a selector for 4, 6, or 8 cyl to control the sensitivity. If they could do that 20 years ago they should be able to do it now.