I've had this happen a few times - not enough to say sporadically. When it has occurred, it's typically when downshifting (3 to 2 or 2 to 1), and while can be dangerous and not fun I do a quick electric restart with my right thumb and KEEP MOVING. Again, doesn't have often but I have noticed an increase since I changed to the Laser exhaust (lots of backfire with this puppy).

I am wondering how the ECU upgrade can account for performance change with the exhaust change. Maybe the best bet is have the ECU fix and tweak done here in Shanghai with the electronics on the bike with its own unique mods and attributes considered.

Any thoughts?