Hi! I want to change the pickups of my p-bass and I have decided on the Dimarzio DP122. I have seen that they can be connected in series or in parallel, and now I have some doubts. I have searched but not found much information about it. I read that in parallel the sound is thinner and the volume lower, is that right? Is there any more tonal difference? And the most important question: if I connect it in parallel, I have to install a switch, right? What is the function of this switch, to change from series to parallel? That is, if I do the parallel installation, automatically I have the bass with the two interchangeable options? Sorry if these are stupid questions, but I'm just don't know how it works.