I have a question about getting the dull finish off my new/old 128. I used oil to clean off the gunk, but it is still dull. I rubbed quite awhile. Does this mean that there isn't any shellac left? or do I need to keep rubbing with oil? I can feel the decal edges so the finish appears to be pretty thin. And, I want this beauty to be SHINY enough to reflect light. That's not happening at this point. Help!!