I am going to make a new bass but I am quite insecure when it comes to electronics. I want a very versatile bass. I think the preamp will be an audere 4 band with active/passive switch and Z-mode switch. Going to the pickups, I was thinking in bartolini's wuad coils, but I don't understand really all the functions it has, and if they are common enough for my luthier connect all the switches. Nordstrand dual coil were also an option but I want pickups that I can switch from parallel to series, and according to nordstrand's webpage, i can't do that. Please help me decide or recomend me any other pickups or preamp.