Okay, so I'm thinking about doing a Warmoth/Modulus bass. My idea is either a standard Jazz, or a dinky carved top P body, and a Modulus J-type neck. Now, here's where the fun starts. I'm planning on using 2 Nordstrand MM4.3 pickups (think of a Bongo, but with all of that crunchy Nordstrand goodness). Now, here's where it starts getting tricky. The MM4.3 pickup allows for operation in series, parallel and silent single coil configurations. Now, my thought is to wire these for series/parallel/single using a DPTT (double pole, triple throw, on-on-on) switch for each pickup. The problem I have is that when jumping between the settings there's going to be a noticeable jump in volume. Single coil being the quietest, parallel being a bit louder, and series being the loudest. If you think about it, on a Musicman Sterling they do the same thing (except with obviously a single pickup), and they do it without any noticeable jump in volume between settings. So, my question is: How do they achieve the three different settings of series, parallel and single coil without a noticeable jump or drop in volume between the settings?