I think of update my JB with an Alnico in neck position a perhaps a fralin split and an ceramic for the bridge ( Delano or Crel).
Alnico for open and round
Ceramic for punch and precision
On the new Yamaha BB Line we have a mix between alnico and ceramic..
And it sound punchy and round...
Link : http://www.youtube.com/watch?v=gzyR_rZFPls