I told him 6 mos before he bought the bike that the ZX6 replacement was coming. He'd barely spend more on the bike and it would not have been an out-dated design. Fact is, he's very skilled and would know exactly what to do with the extra 1% of power. Also, being that the new bike is a 599 cc bike he would have saved and extra $180 a year on insurance. That's a lot of gas for a season.