A 'quick and dirty' test to see if you'd benefit from AFMA is to set up on a tripod, timer or remote release, lens with open, tape a newspaper page or sheet if printed text to a wall with plenty of light, and take ~5 shots with Live View AF (not Quick) or manual focusing using live view at 10x, then take ~5 shots with phase detect (viewfinder) AF with mirror lockup. Pick the sharpest shot of each set, and if the Live View shot is noticeably sharper than the viewfinder AF shot, AFMA will likely help.
might i have a question about your suggestion on using live af focus instead of quick focus. per my understanding, i do think that we have to use live af for liveview shot, quick af does not work in liveview mode. but live af type is somewhat not a phrase detection type like you have mention above "...take ~5 shots with phase detect (viewfinder) AF with mirror lockup..." along with your previously suggestion to modify it to live af type. i am kind of confused.
in short, which one should i use as if I am using viewfinder only for most of my shoot? live af (contrast dection) instead of quick af (phrase dection)? i am currently using quick af type...
I suspect that it is intentional.
Take some shots with normal AF. Take some with live view. Then compare the two.
As the AFMA only affects normal AF, and using live view should be accurate as it works of the image on the sensor.
It seems to make sense to me.