I did not see a review of this lens perhaps I missed it?
Anyway, I was able to rent this lens for a couple of weeks as I am 'interviewing' long lens to add to my equipment. I am a amateur at best.
I shot with a mark 1 DX1 on a both some sunny days and overcast. I was very pleased with the images and the percent of decent shots. All were hand held. I did some post processing on the dog shots, but did not do anything on the football shots.
Sample Photos to follow. I am very happy with the results. B&H has this lens back ordered, so I am waiting. $6000. But very tempted.