Ok-
I set up my FBV using the Line 6 FBV Control v1.03 software, connected to the pedal via USB.
Switches A, C, and D were set to "No Assignment".
Switch B was set to toggle MIDI CC 26, to turn the compressor on/off on the XT.
Then I disconnect the Pedal from USB, plug the pedal into the XT, and start pushing the footswitches.
All they do is change patches on the XT.
Where have I gone wrong?
Thanks!