After getting it microadjusted I went to a local garden to capture some Ruby Throated Hummingbirds as they are headed south.
Initial impressions, I like it. Autofocus does just fine. I can adjust the tracking sensitivity and it at least at first seems better with noise too. Looking forward to using it more; thought about a 5DIV but I don't have the money to get new lenses (would need more wide angle stuff for my landscapes as my crop sensor lenses won't work). I think it'll be a good system.
Thanks for any feedback. 1/1000, f 5.6, 100-400II lens, ISO 250.