I rode a 636 for two months than bought a busa. So experience is a huge factor when it comes to certain things you will deal with while riding, but if you can control yourself a 600 shouldn't be a problem. Buy a textile and a helmet an some gloves, have over ankle boots anything will work and your good. Insurance is horse shit. I mean I guess not to bad I had liability on the 636 and it was 500 for the year, bought the busa did liability again and it was 1800 a year...