Just picked up an 09 800 Switchback w/ 1100 miles on it. The updates were just complete. Rode it tonight for the first time w/ NGK plugs, the Champions fouled when unloading from the trailer. Still has pre-mix fuel in it and have noticed the hiccup several times. But I am not WOT as I am working on the break-in time. Seems to be around 60 mph is when the hiccup occurs and drops speed then starts to pick back up again. Hopefully will get some miles on Sunday with the family and then next week with some friends to really see how this thing is going to perform.