Did I mention that I love airshows and especially The Blue Angels? :)
I'm rather tickled how the Canon 70-300 IS behaved this day. Pretty good clarity. I manually focused, set the ISO at 200, set the shutter at 1/500th and just shot away. Worked out OK.
Why manually focus? Sky confuses the heck out of Canon system for some reason. I learned that lesson a long time ago. Judging by the sharpness, this was the right decision.
LR2 was used to make the planes pop a bit.