I had the pleasure to be able to see training flights at Luke AFB in Goodyear, AZ...I love military jets, and F16s happen to be my favorite...so it was a great experience. I took a ton of pictures, but I was disappointed to find that most of them were blurry. I was using a fast shutter speed and a medium aperture (F11 I believe on Av) and tried panning with the planes using the center AF marker only and keeping that right on the center of the plane. I was also in AF Focus mode (Canon Rebel XS). I tried with both the regular and telephoto lens. I got a few sharp-ish shots, so I'm happy about that, but most of them turned out blurry. Just wondering what tips/techniques there are to make the main subject in motion crisp every time?