1 Scott Englund 8 months ago I recently bought a very nice sunburst 1958 Anniversary. It has a PAF FilterTron. I have not pulled the volume pot or mud switch but I have no reason to suspect they are not original. I have made some observations about the tone and I would like to share. When the switch is in the lower position, it's super bright and as I roll the volume down, it is a smooth volume transition with the exception of losing highs...typical of a tone control without the addition of a small cap like Fender does. In the middle position, which is "kinda mud but not really", the volume drop is quite sudden as the pot is rolled down. When it's in the upper "full mud", the volume drops to almost nothing if the pot is turned down 1/4 turn. I get the feeling there's nothing broken here, it's just a characteristic of the model, but I'm hoping someone will confirm this. In addition, if there is any modification I can do, like a treble bleed circuit of some sort, I would be open to that.