So here is my version of LensAlign:
Dura-Ace box required or it just won't work
About parallelism: Although it may assist in preciseness, I am not sure there is an absolute necessity to be completely parallel. with such a small target (a single auto focus point) even a 1° error would be minute. The key issues are gross front or back-focusing, not whether or not the focus is off 1 cm either way.
I agree that the charts are virtually useless, without a real focus area there is no telling whether or not the red indicator is really the center of the auto focus point or if you are really focused on the "focus here" line.
Terry, maybe you and I should get together one day and find out is the parallelism issue really makes a difference in how "precise" auto focus is.