i haven't done any AFMA. The focus seems properly after some testings on a ruler.
This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.
At f/1.2 focus accuracy is only going to be so accurate ...
That´s the main point. If you are looking to get the f1.2 lenses, you should have the best available AF, to cope with the very shallow DOF. And if you can´t afford the 1DX, then 5DIII is next in line.