I finally started testing my lenses today using the FoCal Pro software. The "Pro" version includes a display of the analysis, which I found to be reassuring. Basically, i see a bell curve with sharpness on the Y axis (vertical) and the ma setting on the X axis (horizontal).
I started by using my 7D and went thru 5 of my lenses which I had adjusted using the Lens Align tool.
I did my 15-85mm zoom first, I had trouble at the wide end, but I was too far away, 4 or 5X more than the 50X focal length that Canon recommends.
Here is what I saw.
15-85mm ma= 0 (was -4)
Tokina 17mm prime= +4 (was 0)
Canon 50mm 1.4= +4 (was 0)
Canon 100mm L= -1 (was 0)
Canon 135mm L= -10 (was 0) - the curve on this lens showed high resolution from ma of -14 to 0 and then went straight down, a strange curve. I ran it 3 times at different distances with similar results.
I have a few more short focal length lenses to do, but the long ones may require me to setup outside, since I only have a 23 foot clear view of the target, and I'd have to do a lot of rearrangement to change that. I can probably get away with 200mm max. at 35 X focal length.
The software does determine your distance to the target and advise you. I found that being off very much caused errors.
I'll try to take some photos of my setup tomorrow as well.
So far, it really beats the socks off my Lens Align tool, and the performance analysis of the lens AF tells a lot of the story.