I did a quick adjust to the 4 distances just now, and after that the lens hits MUCH better overall, so I'll be doing it properly soon. HOWEVER, did any one else experience the lens start to do a sliiiight squeekybeepy sound, like the af needed a little lubrication after adjustment??
*EDIT* There is also a bug with the 1dX that when you use the AF-ON button, but 2 out of 10 times if you push the shutter button halfway and then the AF-ON it won't focus until you release the shutter button. I hope they fix this very soon.