I am envisioning building a bass with a MM pickup in the MM position and a J pickup at the neck position. I will have a coil splitter swithc that will switch the mm from single coil/dual coil series/dual coil parallel in order to get a variety of tones. I am trying to decide on the best combination of the available pickups. I am guessing that the pickups should complement eachother or at least not clash. 1. Do you have any suggestions on proven combinations? 2. Should the J neck pickup be a single coil or a stacked humbucker? 3. I notice that the Seymore Duncan pickup comes both in ceramic and the alnico. What is the difference in sound? please rate them Highs 1-5 High-Mid 1-5 Mid 1-5 Low-Mid 1-5 Low 1-5 Any help I can get I would appreciate!