Answer found.
Look at the attached photo. The ammeter on the Right is engine off and I also pulled the battery disconnect and it stayed like this. The ammeter on the Left is engine idling. Since the needle is showing ~5amp discharge when it is really 0 and ~2.5amp discharge when it is really charging, I have a gauge that isn't zeroed correctly.
In addition, the system is charging per my trusty Fluke (14.8v running). I also checked battery voltage engine off at 12.6v, then went for a 30 mile run with lights and cooling fans running. Upon return voltage was still 12.6v.
The gauge needle is shifted to the discharge range. I don't think it was like that when I completed the car.
The shunt works as it should. I guess I will monitor the ammeter and replace if it gets worse.
Thanks Patrick, Bob and Dan for the advice.
John