I just got a Jaguar HH and installed Lindy Fralin humbuckers. The tone knob on the rhythm circuit has a subtler effect than the lead circuit, and I'm not sure yet if it's simply reducing high frequencies or what. But no matter how the rhythm circuit's volume knob is set, when the tone wheel is turned all the way down, volume is reduced to zero. Is that normal? If it's not, I don't know what mistake I could have made replacing the pickups since it was obvious where the hot wire went and where the ground went, and the Fralins have two wires just like the Dragsters.