I wired up my guitar according to this diagram and had some trouble. When the blade was in the neck position the neck humbucker was completely off, but the other two positions worked as expected. After looking at the diagram I thought "shouldn't the master volume and bridge tone be flipped on the blade?" So I tried that out and the pickups work as expected! Now I'm not enough of an expert to say the diagram is wrong, I might've just wired something else wrong and this fixed that. So as a sanity check I wanted to ask the people on here if it looks right. I am using seymour duncan humbuckers.