I've AFMA-adjusted my 70-200mm f/2.8L II IS last week-end but I'm a bit puzzled by the results I got. Of course, I made the tests several times for every focal length but, at least, those are consistent.

Focal gives me the following adjustments:
- 70mm: -2
- 100mm: 6
- 135mm: -1
- 200mm: 6

OK, now, what do I do with that... Even a 1D X with the double AFMA values wouldn't help here.

I also saw that the Quality of Focus is better in the middle of the range but that's known that the zooms are worse at the extremes, isn't it.

Any advice??