Not particularly come across Jackson basses as being 'big' on BC. But this recently released SIGNATURE DAVID ELLEFSON CONCERT BASS CBX-M V has got my attention!     5 string PJ & blend knob reverse P EMGs  3 band EQ 35" scale graphite reinforced neck £659 GAK in the UK (vs $750 in the US?) Downsides seems to be purely active; no passive 'fall back' 21 frets rather than 24 frets heavy??