I know this has Ben touched on before but I have my bike striped down for the winter and want too hear some people view. Is it a valid upgrade or is moving the engine up a couple millimeters Just spliting hairs that the average joe will never notice it. I have read a couple old threads on this but it seemed be just talking crap back and fourth with no actual useful info or facts too back up there position. I do like my 2012 yz and plan too keep it a while. Thanks guys.