This is the problem with the method you linked to:
Do this at least 3 times, then analyze each image on your camera (you can take it to your computer for analysis, but it takes a long time to go back and forth, so I prefer to do it on my camera instead)
You see, it still requires the photographer to look at the images and decide which is sharp and which is not.
What about people who simply can't get their eyes and their brains to work together to determine what degree of sharpness they are seeing? . Even when zoomed in 100% I often can't tell the difference between a perfectly sharp image and an almost perfectly sharp image and a fairly sharp image. . And my vision is perfect and I don't need glasses. . Many of us need science to give us some absolute determination as to which image is the sharpest, because we lack the ability to tell by looking at the images.
What we need is an MA method that doesn't require us to look at images and make value judgements as to their sharpness ..... some technology that tells us which is the sharpest, instead of making us try to figure it out by analyzing the images. . Anything else relies on a human to make a decision, and is therefore essentially flawed.
"Your" and "you're" are different words with completely different meanings - please use the correct one.
"They're", "their", and "there" are different words with completely different meanings - please use the correct one.
"Fare" and "fair" are different words with completely different meanings - please use the correct one. The proper expression is "moot point", NOT "mute point".