I was a little worried about the whole playfield ghosting thing as well.
this is a reply from the vendor I got it from about that
"The units that had issues were early run LE and Pro Models, the Premiums were the last ones made. There have been no problems with the Premium models we have sold and the Premium you are received was just built by Stern with in the last month or so. You should have no problem with the machine at all, but of course if you do Stern and Automated Services will make sure you are taken care of."
Have had mine for about a week and a half with no issue.
Great game, when I played the pro at first at TPF wasn't really for it. Then I got another chance later at a place near me. needless to say it's in my collection.
Got it for 7019 shipped, no taxes since I don't live in Connecticut.