Part 6...your engine sharing its feelings.
Do you know that "you" just may be the most qualified person out there to know when something isn't right on your bike?
Quick story. In my younger days, I wouldn't take pilots seriously when they would say "something isn't feeling right when I do this but nothing is broken"... Well, I was wrong back then. Anyone who spends countless hours on any machine even if they can't verbalize it correctly are usually right in what they are feeling.
No one knows how your bike feels better than you. A slight hesitation that wasn't there before, a new noise, a new vibration, a different feel in the bars or suspension and even a new smell.
Don't blow these things off. It is usually an early indication from your bike something needs attention better to find it now then after you have driven 6 hours to next weekends race.
Also, don't feel bad if you can't verbalize it correctly a good mechanic should be able to help you track down the issue.