Any clues on light switch stiffness?

[daveymc29]

I am rewiring one of my A's. The switch would seldom turn (in the center of the steering wheel) and the few times I got it to move it blew a fuse or tripped my breaker. Before installing the new wiring harness I tried the new harness with the old switch and though it moves better it isn't a whole lot better than the old one. The new wires look more intact and I turned the lower bushing on the steering gear so that now the bail locks the switch from the bottom instead of the top. (Turned the bushing so the slot for the switch is on the bottom, it had been on top.) Just wondering if anyone else has suffered with a stiff switch and how they got it to loosen up? Lube, what kind and where did you put it, it you did? With the switch removed the light and horn rod spins freely and doesn't appear to be the wrong length or bent in any way.