I would love it if you could configure the expression ports to serve optional purposes, such as MIDI or external tap tempo. Disaster Area updated their firmware so that you can configure the expression port to serve these additional functions.
Example, I would love to be able to connect my Empress Reverb directly to one of the expression jacks on the MC6 instead of routing it through a midi box. Then I would love to have an expression pedal set up to the other expression jack to control the expression on the Empress.
+1