DH2 is faster than DH1...

I have not done much sport shooting, but I know it is hard when we try to shoot moving subjects, especially on a sport filed… it is impossible to catch all moments with our eyes. For better or worse, I guess just keep shooting until camera’s buffer stopped you. (Well, there must be something needs to be done correctly during shootings as you mentioned. What are those?)

Then you can have your pictures speak for themselves, and pick up the ‘best’…

I believe your ED70-200 lens is f/2.8, because I cannot recall Nikon has other f-stop AF lens in this range. (I may wrong anyway).
So if you are still not able to pick out the ‘best’, I guess you need DH2 more than DH1…
But don’t tell me those two pictures were your ‘best’…. J