I've got a footswitch that is currently wired as shown below. One switch changes amp channels from clean to dirty, the other is a boost. My problem is that the LED's light when the amp is in the clean channel, and when the boost is off. I'd like to rewire it so that the LED's light when the amp is in the dirty channel and the boost is on. I should be able to figure this out but... can't Should the ground be in the middle position of each switch? Any help is appreciated.