I had the 70-200 f/2.8 at one point, to be honest it wasnt everything everyone told me it was going to be. It left more to be desired at airshows and sporting events, and even at 2.8 it still seemed like a dark natured 4-5.6 lens. It was a great portrait lens, but I stand by my primes for that type of work.

If I ever have to shoot another air show, I'm going 400+ or going home, those guys dont mess around lol.

I'm about to have to make some sacrifices in my lens bag to move back home to Tampa, one of which is going to be the 17-55, for one of the reasons I mentioned above. I feel like I'm always chasing light with that lens, very dark natured and the barrel distortion is worse than my 18-55 el cheapo.