Great pick-up. Don' beat your self up over the reimport. My STTNG is a reimport also. The only difference is the coin door and the transformer. Heck, I went to Mexico a couple of years ago so guess I'm a reimport too.
On another note.... just received my Scared Stiff last week, upon receipt it was missing a flipper button so I removed the button off of STTNG. After cleaning her up and playing many hours I noticed all the eyes on the blackglass of STTNG starting to follow me, never noticed this before. Guess STTNG got pissed that I'm giving all my attention to Elvira. All good now because I received the button so I hope STTNG forgives me.