I have a bass with Dimarzio Ultra Jazz pickups on it, and would like to the series/parallel wiring diagram mod. Has anyone here done it? First off, as I look at the diagram there doesn't seem to be anything wired to the tone pot lugs except the capacitor. There appears to be a dark spot drawn in on the middle tone lug, but there isn't a line going anywhere from there. Will this work? Secondly, with this diagram will it be paralell when down and series when up or the other way around?