A nice little Les Paul Studio in for a bone new nut and some switching issues.  The toggle switch had been replaced and the solder connections were rather poor.  This style switch is designed to break the connection as opposed to making a connection.  The pickups would cut in and out and there was no neck-only position.  The neck position was not properly kicking away the bridge pickup connection so the contacts needed to be physically adjusted to allow the neck-only pickup.