Just got myself a new 2011 cross roads. Red, Hard Bags, Short Windshield. Lovin' it! However I notice a bit of vibration / possible bogging when I roll on the throttle say in 4th at 40 for example. It does it in other gears/speeds as well. When I reach a certain speed, the thing smooths out. It acually seems to have tons of power regardless. If it was my old carburated Vulcan, I would suspect a mixture problem. Not too worried, got my 500 mile check up coming soon. You guys have any thoughts on this?