Quoted from PanzerFreak:Yesh, sadly as far as "continued" playfield issues go it's now just JJP. Stern thankfully actually did something other then washers to correct the issue. Removing artwork around all sling posts fixed the issue for Stern. Why JJP doesn't do the same thing is beyond annoying.
Stern still has issues, guide rails digging into playfields, pulling clear and artwork up. Stern did, however, change their process I think with Elvira. Noticeably thinner clear coat.