update: Went to get a color match done using PPG Delfleet Essentials single stage. No pops right from the get-go with my test panels. Color match looks stellar: better than the ones I got from Sherwin Williams 2 stage and the Dupont Nason single stage.
3 coats done. Laid on much easier and better coverage -- there are a lot of solids in the Delfleet.
Fellow customer at the paint store said a bad batch of activator caused similar popping for him doing a Mustang with Nason ful thane. Maybe that was my problem. Not sure.
Very happy with the Delfleet.