I somehow tricked the church guys into letting me play my upright this morning. Plugging into the system, my bass with Zyex medium had a terrible high end zingy sound with almost no reasonable low end (going through an Aguilar TH 500 and 1x12 cab.. into a giant PA system). It sounded awful no matter what I or the sound tech did. Knowing this first time with the upright could have been my last, I got to church 30 minutes early with my B3 to figure out an EQ setting that would thicken the sound, boost low end, and kill the zingyness. I want to play upright again at church, so I really needed my bass to sound great, fit into the mix, and sound like a silky sexy upright. For those who use the B3, I used the AC Bs Pre into the Exciter while backing off the highs on both. Each independently didnt do the trick. It did exactly what I wanted, and it sounded great. I couldnt find any posts with recommendations for B3 with upright, so I'm starting one.