I bought a game used signed bat from ebay got it in the mail and on the autograph it has plastic wrap on it.What does that do to the autograph itself if i leave the plastic on the autograph for a long period of time would that mess up the autograph on the bat.Or should i take the plastic off of the autograph.In time would the plastic stick to the bat and again mess up the autograph.Any help would be nice.Thanks Geoff