I have been doing mostly outdoor sports photography and I'm now interested in doing events, family reuinions, parties, church, social and such. I've shot a few of my kids school functions and I've gotten unpredictable results using my 20d and Sigma 500 DG super flash with the Stroboframe Quickflip 350. I've been using the Sigma 24-70 2.8 lens mostly for this type of photography. I've tried manual and AV and TV, and manual camera modes with ETTL on the flash but I still never seem to know what to expect w/o checking histogram and display. With events the situations change constantly and it's not good to have to keep checking every time you have to shoot in a different setting. I have read the Photography with Canon EOS on photonotes.org (and anything else I could find) and I think I have a pretty good understanding in theory how things work. It's just the applying it in real work that I'm struggling with. Just wondering how most of you guys deal with this. I'd like to know specifically what camera/flash modes are used most often and in what situations. Is my Sigma flash inadequate for this type of work or do I just have a lot to learn? I've read on other forums that some people even with the Canon flashes have similar problems. Any suggestions from working professionals would be appreciated. Thanks!