Anyone use shoot through umbrellas? I have a pair of 580EX's and a ST-E2 remote, and am looking for solution for shooting couples/family shots of 4-6 people max. Strobist has a couple of articles about using shoot throughs for a single sitter (including the one stating he'll never shoot reflector again, but that's another story), and the look of the example shot was simple, contrasty, and tight. Anyone here use shoot throughs for larger groups/more complex arrangements? Please tell me about it. Better: how about an engagement shot (in dress/tux or out of dress/tux: whatever), indoor, location shot? I am looking to buy a pair of 45" Westcotts/Photoflexes, and would like to hear your experience/suggestions.