Here are a few shots with AI servo mode set (same 5DII body and 70-200 lens with IS on... Oh yeah and same dog in between hair cuts ��):

Shot at f/2.8 at 168mm, ISO500, 1/320sec
http://www.flickr.com/photos/mazing_...ream/lightbox/

Shot at f/3.2 at 168mm, ISO500, 1/1000sec
http://www.flickr.com/photos/mazing_...ream/lightbox/

at f/5 at 200mm, ISO200, 1/2000sec
http://www.flickr.com/photos/mazing_...ream/lightbox/

I think the sharpness on the last is better than the first two. All 3 are still sharper than the original post which i can credit you guys and the AI servo setting. These were shot on different days with different lighting. The first two were shot in the shade. Appreciate your comments and feedback on whether there is anything I can do to improve the sharpness further.