Looking at the pictures in the link, there is just one signal input lead, so that doesn't give any options for differential mixing. Looks like it is just an ESC with built in distribution to 2 motors. Looking at the output and power wiring and connectors, I can't bring myself to believe the current rating claims. I have a single 60A one of theirs - again I wouldn't want to use it with anything pulling more tan about 10A, the instructions claim that it is good for 6-9 NiMH cells. It certainly won't work with less than 6, the 9 cell top limit says "No" to 12 volt systems.