I look a peek at that page, and I'm disappointed. Not in the lens... in the reviewers. Portraits, flowers, sideways action... nothing that would test the sport focus performance... one of the main reasons to look at this lens, I would expect. Sure, show the sharpness on a static subject compared to something else, but, please, test a sports lens in a sports situation!

Of the 60 images or so, I think there was maybe 2 of an airplane not going sideways, and maybe 2 birds not standing still or going sideways. I didn't check the few sites that were listed as only showing downsized images... perhaps they were better, subject wise.