My wife got me a new set of pickups for my first bass. Awesome. It's a 90's Artist series Samick. Originally it was wired with passive pickups, single volume, single tone and a three-way toggle. Maybe 12 years ago it got a set of EMGs, still wired volume/tone/three way toggle. So fast forward to now, I've a fresh set of Dimarzio's. This time I'd like to do something different with the toggle stitch. Instead of neck only/both parallel/bridge, I'd like the combined position to be series. I'm guessing I need more than just a DPDT to accomplish this. A DP3T? A DP4T? Medium length shaft fits instruments without a pickguard? I could take it to a tech but learning DIY never hurts right?