First Time Shooting Soccer with a 400mm

I had a 400mm and a Mark III loaned to me through CPS for when I shot the Club Championships for Ultimate Frisbee. Before I had to return them I shot a UCI Soccer game. I sure wish I had one for every game. The shots were sharp and I loved the vibrant colors. The noise levels on the Mark III were very remarkable compared to my Mark IIn and the D2Hs that I usually shoot with. All I ever hear about lately is the D3 and I think the Mark III is easily being overlooked, especially with the drop in price. I guess next time I have an extra 5k-7k lying around i'll consider it.