Found this statement on sonic state -
"Custom foot controller support
Kemper have been working with companies offering custom foot controllers or chip tunings for universal foot controllers in order to give choices to the Kemper Profiler users. Watch out for offerings from FAMC Liquid Foot, UnO 4 Kemper, and others"
I can't see any reason why Kemper would allow a premium maker to do a Foot controller unless it is the official one.
Anyone Know any gossip?