Hi I am looking at buying a CBR600RR. However I can afford around 7000-8000 which is about what the second had 06 or 07 models are going for. I have read on wikipedia that there was an engine change between these models. And i know people say test ride and see which one feels better but you cant pick up everything on a test ride. Has someone ridden both? Is there a major difference, should i wait for a good deal on an 07 or is the 06 essentially just as good?