never had a problem with michelins, its what i bought to replace my bridgestone turanza's that came on my 745, absolutely sucked...no problem with pilots. my all time fav has got to be the yokohama advans now thats a good tire
but i would never reccomend flipping tires over, as they have been driven on in one direction all the while allowing the rubber to go back to its original compund when cooling down, not doing so could lead to a failed tire, which i learned the hard way, not to mention the performance.