purchased the Focal software and just did it on my kit 24-105 @105 and my 50 1.4.
50mm 1.4 needed +9 adjust
24-105 needed +5 adjust at 105mm
is that usual?
I have now done most of my lenses (I've a ton of old EF film lenses that I may consider some day).
Here is the results so far, and a typical report that FoCal Pro produces.
This is my table made to keep track of my settings in case I happen to lose them. Zoom lenses have two settings, while primes have one. I wish there were a macro setting for the 100mm L, I'm certain that the AFMA value will be a lot different at near macro distances.
Most of my lenses are close enough to be set to zero, but my most used lens, the 135mm L, along with my 85mm f/1.8 need AFMA. I have yet to test the 35mmL, I overlooked it or would have done it when I had the 16-35mmL setup for 35mm. Same for my 50mm f/1.4. Doing a AFMA for my 15mm FE would not likely make a difference, but I'll do it anyway.
Table produced by FoCal. As you can see, the lens had a AF issue one time. I was outdoors, and the wind was blowing gently, so a gust might have moved the target, or just the lens misfired. It happens more than you might think, and FoCal shows it.