Thorrulz wrote in post #16771291
Did you ever get around to taking and posting some photos with the outer focusing points of the 6d set to ai servo? I could have sworn I saw you at last night's hockey game taking pics with all the other sports photogs.
You definitely stood out among all the other shooters that had either the 1d or d3 bodies. Of course I think you like to stand out, don't you?

Not to get into the middle of this, but I did post a bunch of those back a few months ago, using my Sigma 120-300 2.8 at 300mm f/2.8 in another thread, I don;t remember which one. Cars and runners in the park, not heavy action though... It was only a test for POTN 
I also used my 6D for BIF a few times in a pinch when, for various reasons, I was not using my 7D or 70D at the moment. But for birds I either use the center point or all 11 points auto AI Servo. Using one off center point for my BIF shooting would be impractical and pointless, even if that off-center point was a cross type one. For birds I need room for the wings in the frame, which are obviously flapping all over the place, I don't want to cut them off, plus many birds are unpredictable, and move around in the frame, as well as my tele lens is moving too. So I must keep the bird as much in the center as possible that's why shooting with one isolated off center point with the 6D would be impractical, whether it's awesome or not.
But again, I use my other cameras for that for fps, reach, etc.
What Bakewell is saying that he never uses one outer point alone for tracking; he uses the all-11 point automatic AI Servo, which he has discussed before. So that's why the question didn't make much sense to him so to speak.
But please don't shoot the messenger 