I am in the process of re-wiring my p-bass. I have the supplied diagram that came with the new pickups, SD/QP's, however there is also a diagram on the guitar electronics site that shows a typical P-bass diagram that is slightly different. The seymour duncan diagram that came with the pickups is different than the one at guitar electronics. They supposedly are both for Seymour Duncan pickups.In addition Stewmac has a diagram that shows a different configuration. The basic difference is that one shows the capacitor connected between the two pots, while the other shows the capacitor connected only to the tone pot and grounded to it. question is, since i am still learning is, what is the difference? Which way is better? Look at the wiring diagrams at, www.Stewmac.com www.guitarelectronics.com From what i understand already the capacitor is used only for the tone control as a way to bleed certain freqs out. Maybe someone could describe the variables and why there would be a difference for such a simple wiring job. Also, is there a preferred type of solder to use or will basic flux core solder do the job.