Many of you, who own a Brian May type guitar, possibly know that you can sometimes cut out your guitars sound when switching between pick-ups.
This occurs when one of the on/off switches is midway.

Greg Fryer has very kindly supplied me with a wiring modification to eliminate this problem. It involves soldering some links on the pick-up on/off switches. (Not the phase switches)
Please see the drawing below:

If you have any doubts about doing this modification then print off the diagram and ask a competent guitar technician to do the modification for you.