Just got done testing the hybrid (volume/blender) pot on the Frankencaster. The bottom tone pot is a blender pot that goes to open when turned all the way down like a no laod pot but the on the opposite end of the sweep. When I flip the DPDT to break the signal from the other two pickups that are on the three way blade switch, the ground is connected making it a volume for the middle. If I turn the volume down on the main volume the middle pickup is straight hot with no tone in the circuit like my other strats. I modded the pot by taking it apart and covering the ground end of the sweep with CA glue then reassembling it. This allows it to work as both a blender and a volume depending on how I flip the toggle switch between the volume and top tone.