I've read alot of threads regarding newer 450S and learned alot about my bike on this site. I have read many threads that discuss doing things like the manual says and vise versa like oil change procedures, and other routine maintenance procedures. It's obvious that personal opinions play a role in how people agree/disagree to the manual with the above procedures. My question: What are some of the top recommended (per the manual) maintenance procedures that some of you disagree with? Like doing a partial oil change rather than a complete oil change per the manual including removing all external oil lines or chain slack measurements, other fluid replacement intervals etc? I ask this because I am interested in learning more about my bike and want to hear what other people have to say that have more seat/wrench time than I do.