Hi Bob,
In my last post concerning the nano, every thing has worked out. It is a very powerful instrument. Yes chanel 127 is silent for when you daisy chain them, or use them with any other synth and you don't want it to make any sound.
Be aware that if you nano acts up it may require reinitalizing. More info can be found at http://bilbo.bio.purdue.edu/~bhill/crumpy/