i really dig that bootsy-like wet sound of q tron and cliff burton's sound in the intro of "for whom the bell tolls" which i knew he used a big muff so i was after a qtron + big muff combination to try getting a close tone but the dealer recommend me qballs and bass big muff so now question arises should i get a qballs + bass big muff or qtron + big muff to get the tone i like?? or any other suggestion??? i use a MM stingray, have heard that active circuit with qtron don't sound so good as passive one...?(worse volume spike maybe??) what kind of combination is better suit stingray?? THX!!!