Nobody thought the 6D was well thought out for any level of photographer, except, maybe, those who do a lot of arranged and found still life on tripods and could use Live View most of the time. That's too specialized for success.
WOW. So the 6D cannot be good for any pro work with its AF system?
Two pics I took some other day (I'm not claiming I'm a pro). Went and used the outer points. JPEG OOC, using my 24-105L at 105mm (not very sharp lens, I know, but I love it anyway). The first one was taken handheld, 1/50.
Next one: it was dark, if I weren't using flash, I believe I would need ISO 12800 for a good exposure. Also taken at 105mm, but 1/100.
Last saturday I went to a birthday party and took the 6D with me. Kids were playing, so I thought that I would try its SERVO mode. Center point only, JPEG OOC (except for curves), silent mode (3 fps), at 105mm, ISO 1600, 1/1600s:
Subject was running 3.4 meters away (and came to 2.7m on it's closest picture). AF settings to prioritize focus.
Seems good to me. Until now, I cannot say the 6D is holding me back.