Guitar to either MXR Dynacomp or Phaser out to amp directly with no PBC - no audio volume drop. If I put either in loop 7 (which is fed directly from buffer 2) of PBC then again no audio volume drop. I am assuming both pedals must have impedance requirements that buffer 2 is meeting. If I put them in any other loop including loop 1 in front of buffer 1, then significant volume drop. Whats so special about loop 7 and buffer 2? My other pedals are ok volume-wise in any of the loops and I am ok leaving the phaser in loop 7 to take care of its volume drop issue but I need a loop for the dynacomp without volume drop. (Again loop 1 with buffer 1 feed still volume drop) Any thoughts on how to resolve and whats happening here?