When controlling the Multi-12 effects with an FC7 pedal, it can be inconvenient to readjust it after changing kits. Fortunately there's a setting in the MIDI3-8 menu (CC Number & Value page) to preset the Effects Send level for each kit. I've updated my user kits with preferred Variation effects level values, by setting CCNo=94 and Val=0 to 127 for midi Ch10.
So there's one less pedal required with the hihat pedal setup as a basic effects controller.
The Multi-12 has some impressive features to help make the drum kits more versatile and sound better.