I appreciate the info. Unfortunately, judging by their track record, Polaris has been making changes, but not "refinements" or "improvements." If they went with thicker skirts that was a fail. And if the Pistons were different that was also a fail. How can Polaris claim increased longevity? Is there a machine they hook it to that simulates REAL WORLD riding conditions? Until they have two or more seasons of only very isolated or minor issues, there will be a "what if" hanging over the heads of every 800 motor out there. I am basing most of my failure info on what I know of locally, not in the forums. I guess if it is true they are making a change, good on them for trying. Oh, and my cereal does taste a little bad with the sour milk I am using on it right now

I have an 11 Pro with a brand new motor in it right now