Hi, I only have synced the Microbrute clock to the Drumbrute Impact. The Microbrute is set to external clock sync via MIDI, with the sequencer set up so it starts and stops when I press play and stop on the Drumbrute Impact, and the envelope is set to fast attack, rather fast decay, maxed sustain and maxed release. The Drumbrute Impact just sends the clock signal to the Microbrute, other than that they're set to different MIDI channels. Now often times when pressing stop on the Drumbrute Impact the Microbrute will stop the sequence as expected, but keep sustaining the last note of the sequence. Sometimes the last note stops sounding as expected after pressing stop on the Impact, most times tho it doesn't. I guess it has something to do with the microtiming of the MIDI clock? (I had the same issue when syncing the Microbrute Red to an Akai Tom Cat about two years ago by the way, and wish it was fixed now.) ^^