Hi,
Was thinking about this, and I wanted to specify: the tap switch will work if you hook it up directly to the Factor, but will only transmit and synchronize to other Factors while using the first Factor in MIDI through, which you may be doing with the MIDI Moose. I don't believe a single Factor will be able to both have tap tempo set from an aux switch AND transmit that data while using the Factor in MIDI through (some digging through the user manual of whatever Factor you're using will confirm/refute this).
