Took my bike in this morning for a follow-up dyno-tune (engine break-in now complete!). Was supposed to only take around 2-3 hours... the dealership still has my bike. Hopefully, they'll figure it out tomorrow. Apparently, they are struggling with a post-idle stumble... the torque drops at around 2200-2400 rpm, then recovers and seems to drop again around 3300 and then recovers. So, they've worked on this all day today, still no resolution.

Engine specifics are in my .sig...... This is a brand new bike with 600 miles on the odometer.