Rumor has it that JJP playfields are made in China from what I've heard recently although they do use Microplayfields too. Maybe their CE models use Microplayfields and then China for the other models.
As for Stern I've seen it most recently on Deadpool and Munsters. Same crap! For $8k+ you would think they'd get this crap under control.
Heck all of my Bally/Williams 90's era pins are all in excellent condition with no chipping or pooling around the posts.