Thanks alot Fran. I usually set up multiple profiles in my modules for midi transmit/receive channels for different instruments. I would like to run the Roland thru my sd4 to pick up additional or better sounds. And I run my accordion (with Totter midi) into an SD2 when I play with the band. For singles I'd like to use the midi thru from the SD2 back into the roland to use it's arranger. Foot pedal would take care of fills etc in this case. I imagine I would have to turn the "local" off in the Roland to run it this way. I use both instruments in either type of performance.