I have a question. I have a 1952 singer 201 that I have recently brought back from our other house. In my enthusiaum to clean it, I have removed what I assume to be the shellac. So now is it better to remove the rest of it or to do as the tutorial here in this forum suggests? I only ask because I saw directions on how to remove it and wondered if it was better to remove it and start over or just start with what little is left? Any thoughts would be appreciated.