I really need to start going to these events again, always loved the graduations I went to a few years back before other things got in the way.
They tend to get the kind of flypasts that a lot of airshows would be pleased with, the sight of a PR9 back in October 2003 is one I remember particularly well (even if the pics weren’t so hot). Seeing the Red Arrows there is pretty good as well, can get some nice, unusual perspectives.