I'm prolly only one of few doing this.. but I play my Smith passive, as I do all my basses. One of my basses when switched to passive has the bass-knob acting like a tone rolloff knob a la jazz bass in passive mode... I love that! I know the passive switch is prolly and emergency escape when battery is dead you can swich to passive when playing on a gig, but I like passive cicuits more then active ones just cos somehow to my ears it has a little more dynamics to it, can hear my fingers better also difference between playng softly and hard is more apparant, plus somehow it makes the tone troathier and more raw... atleast it does on all my active basses, the rest of my basses is obviously allready passive
Passive works best on my Glockenklang rig, cos its so ridiclulously transparant
... and I play that thing flat aswell....
Best regards
Bram