Myself watching skkyer videos... the one thing I noticed that he did was to constantly toggle in and out of combat trim.
Isn't there an indicator light for that?
yes there's a light for it. beacon - auto - trim, it's green. Auto-trim can diminish your performance because it's going off of a pre-set table of values that does not perform well at the fast and slow corners of the envelope, especially slow because it doesn't account for flaps. Constantly toggling it on then off though will keep you more or less trimmed but without the penalty of keeping it on punishing you when the fight gets extremely slow. It's common to use a hat switch for trim but it's more important to use that for views in AH, and using 2 hat switches at once is problematic, so auto trim on/off deals with that with much less workload and a slow speed performance gain.