I just posted this on the Mybeatbuddy forum: Update: I got my Line 6 M9 yesterday and tested the midi sync and it worked perfectly. My set up: Mybeatbuddy midi out to Midi in on Boomerang 3, Midi out on Boomerang 3 to Midi In on Line 6 M9. The clocks stay in synch perfectly on the boomerang and M9 and all my delays and modulations are in synch with MBB. I can Tap Tempo MBB and everything synchs to that tempo. I am one happy camper. But the M9 looper does not synch.