I have a schematic and layout for the dumble ods and got to thinking what would the tone stack and switching options do for a standard ab763 pre-amp circuit. Not changing out the power section. I have a bandmaster reverb that, in its latest incarnation, has a hotter normal channel. I got bored with it and have been using a yamaha t100 for gigs now, so it just sits there looking at me now. Has any one ever tried putting the tone stack and switching options in a fender?