Thanks a lot for this Brant! I've been reading this thread as you went along even though I didn't have much to add I did find it very interesting. I've considered getting a supertele at various points but end up not being able to justify the cost for my anticipated usage. Right now I'm content with the 100-400 II but maybe someday I'll pull the trigger.... Until then I'll live vicariously through you, so make sure you post lots of pictures and a follow up review once you've settled in with your new baby!

Stephen