Re: On a strat, is there a way to...?
Agree. Disconnect one of your tone pots. Wire the other tone as either a master tone or just tone for neck and middle. Run a jumper wire from the switch where the bridge pup is attached to the tone pot and from the pot to the switch where the neck pup is attached. That will let you blend in the bridge to the neck position giving you bridge and neck on together, and you can add the bridge to the neck and middle pups giving you all three pups on.