Chrysler doesn't pay to dial in the cam when replacing the timing chain or the cam. So if they don't think it's necessary that's good enough for me. I have built more engines than I can count and the only ones the dialed in the cam were high performance. Stock rebuilds don't need it. Some people scream and holler that it's necessary but I believe it's over kill for a daily driver. This is just my opinion with 50 years experience.