Does anyone else notice that the CC is very sensitive? I've noticed ours down shifts 1 to 2 gears on some overpasses with the cruise set at 75 mph. I've crossed the same overpass without cruise and noticed the mph only drops 3 mph before getting to the top of the overpass. To me this will grealty effect mpg, especially when it downshifts 2 gears and RPMs jump up to 4000 or so.