I used the Obsidian Wire Universal 3-Way switch to upgrade a Squier Affinity Telecaster, and it turned out better than I anticipated. I put a Fender '62 single coil pick up in the bridge position and a Seymour Duncan Seth Lover 4-wire humbucker in the neck position.
The tone is unbelievable, clean and clear. The bridge pickup is bright without any hum at all. The humbucker is deep and rich. With the coil split I can get either the traditional Tele neck tone or the bridge and neck tone without any hum.