+1
When I first considered buying a KPA, the Alternative Input was one of the most attractive I/O features to me.
I was hoping to use the send/return, for X slot, while simultaneously using the Alt Input, to introduce another signal, s/a, direct out, piezo, etc...
And, hoping to be able to mix the Alt Input signal with whatever Rig being used.
Thus achieving the "two Rigs at once" requested feature.