Today I was out testing the AI Servo on the 6D using the center focus point. I was hoping to get some BIF pics of the huge buzzards that float around our area, but as soon as I came out with the camera, they all settled into their tree out back. So I shot this of the neighbor's dog running towards me. This is nearly a 60% crop. I shot a series of about 10 frames on full auto using AI Servo. 3 or 4 came out very blurry, several were ok until I cropped in, and two were like this, which is not super crisp, but ok.
300mm f6.3, 1/2000/ +0.67Ev, ISO3200 Shutter Priority