I have a question. When you say you read that changing the outputs of all pads to something other than st 1 should allow that output to be disabled, have you gone through all 8 banks and done that for all pads in each bank? Because I notice that any pad that doesn't have a sample assigned is routed to st 1. I just didn't feel like going through ALL 128 pads and doing this!
That said, I noticed that all the other outputs can be disabled whether there are pads assigned or not so...
I get that you don't want to have that extra output using a console channel though serving no function at all. You could hide it as a workaround, but the bottom line is that though it's not visible, it's still there. I agree this needs to be addressed.