Quoted from Enaud:Aren't the GBLEs supposed to come with two coats of clear? I wonder if the problem playfields have the two coats on them. I don't have any idea if that could be related to the chipping clear or not. Also curious if any replacement/swap GBLE playfields (if they in fact do this in SOME cases) will be signed and double coated clear replacements.
Food for thought.
If I recall correctly stern used to add an extra layer of clear as a feature for LEs but I think Xmen (maybe it was avatar?) was the last game to have that feature, all models since then use the same amount of clear coat.