For the longest time, the only effect I had was my Bass Big Muff Pi. Finding it a bit lacking, I picked up a few more things. Rusty Box and a Mini for more dirt variation. Rusty box is always on. I have a jazz bass and a jaguar p/j setup. When I run the mini into the muff with my bridge pickup on either bass, its all good, except it loses a little oomph as to be expected. However, when I run the neck pickup, it gets all squashed and farty. The muff alone is fine, and the mini alone is fine, but together its no good. Has this happened to anyone else? Is it just the crappy muff or is this a common occurrence when stacking dirt? I don't have much experience with effects beyond these, so I'm not sure what the issue is.