Thanks RV, that is my keyboardist's tune! The swinging free jazz improv section is just wide open. By head I meant the written structure of the tune, sorry about the confusion. Yes, using a QSC GX7 power amp that the great folks in this forum (Rusty Gibson, Jazzy, and several others turned me onto.) The head/preamp I am using is the Grace Design Felix Edwin turned me onto. I just set it (Felix) and forget it (depending on the room & gig) and use the filters on the bass.
Regarding the filters on the Series 2:
The first zero to 6 seconds in I had the filters on the bass rolled off all the way. The second time we played the same phrase I kicked up the the bridge pickup filter almost all the way to cut through. Then rolled them both off for the walking, free section. At the 4 min mark, at my solo, I opened the bridge filter just a tad. Opened just enough to get that peaked mid freq wha sound to cut through.
Love these basses!