i would think that a music man style pickup in both standard positions would be idea - 2 music man pickups in all. give each one a 3-way switch ala sterling/stingray, and then you have the ability to have 2 single coils at their proper positions, like a traditional jazz, but also get the p-j'ish sorta humbucking neck thing going, plus all those great stingray tones...
i really dig the music man style pickups. i got custom seymour duncans on my 8 strings - i love em, biggest pickups i've ever seen - 16 pole pieces

. sound incredible, and then the basses also have 3 band eq, and a fully parametric, sweepable Q eq. and piezos. and synth pickups. and...
anyway, i always thought that a dual mm style setup would be cool, sorta like the l-2000 style g&l basses.
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