Believe me, if it is Fullerplast it has sunk into the wood. Think of it as a substitute for grain filler. What it does though is allow for the nitro to be shot on very thin. But the point is the finish has absolutely no impact on sound. A J30 is basically a Hummingbird minus the bling. And added to that is the cool factor of owning a guitar that being built before 1990 is one most people would count themselves lucky to ever run across.