The service guy at the dealership told me that changing to synthetic at any point is not a good idea. He said that most all new bikes , '06-'08 or so, are so far advanced mechanically, that you dont need to do anything special. The bikes come somewhat pre-broken in from the factory, the bikes are designed to run on 87 oct and non synthetic oil is fine for the life of the bike. He said most people switch to "better" oils, filters, gas, ect... because everyone tells them to. Its all in your head. If you feel like its gonna run better, then do it. If not, then dont do it.