Hi everyone and....merry christmas! Questions: I am not having any problems with it yet, but i have an escort x50....manufactured o9/2006. I heard escorts get out of calibration at times and need to be sent in for service. Does this happen very often? Is it just x50's? Does it require new parts or just re-calibration? Finally if i should need it, does anyone know approx. What the factory charges for service or repair?