Has anyone here ever replaced the pre-amp in a pedulla or other boutique bass that uses active bartolini pickups? I bought a Bartolini 5.1 harness thinking that "Hey, it's bartolini, it'll work, right?" WRONG!!! This is the biggest nightmare I've ever had. I've spent probably close to 6 hours experimenting with different wiring configurations to get a good tone out of the system. I've also spent close to 3 hours on the phone with a technical guy from the place I bought it from who actually made some mods to it for me. I won't mention who they are because they've been very helpful and it's not their fault (I think) that it doesn't work right. Basically, If you wire the system up the way it's specified it sends out a VERY HOT distorted signal. The pickups definitely work right, but the onboard pre is being overdriven to death. The blend pot being used is 250K and he says it might need to be something more. It's impossible to tell what the original blend pot was rated at because someone decided to rough and soldier the ground to the casing right where the value is printed. For anyone who's wondering. The wiring coming out of the pup is 4 leads (white, red, black, and green) and a ground shield. It's been determined by testing and by remembering how it was wired previously that the green is the hot, black is ground, red goes to a battery lead, and white is not used (tech guy said probably a coil tap). Bypassing everything and wiring a pickup straight to a jack produces a VERY hot signal, only slightly distorted, which the tech guy said is OK. So, now that we know how these pickups work we hook everything up the way it says with the following mods: 1. attach both red leads from the pickups to the red battery lead (which also feeds the active pre-amp) 2. attack the black leads to the ground, along with the ground shielding. 3. attach the green leads to the blend pot as shown. So, this results in an extremely hot, extremely distorted singal coming out of the bass, not exactly what I was hoping for. Anyone have experience with this?