I average about 1k - 2k photos a wedding. My 2nd shooter usually pulls in about 1k photos. Everything gets dwindled down to about 450 - 700 photos. Lots of duplicates, off moments, test shots, and of course non keepers.
At a Judo competition I might average 600-1000 shots over two cameras. At a competition organised by our club that goes up to 3000-3500 shots (because I shoot as many matches as possible and not just those where our club members are competing).
Now I have a
very high wastage rate as a lot of shots are 6-7 frame bursts taken when I think a throw is about to happen. I start shooting in anticipation (watch the feet!) and I get it wrong a lot of the time (no move happens, a counter stops anything interesting from happening etc.) The "nothing happens" effect also makes it fairly easy to sort out the photos for further processing.
So, to run to 1-2k shots per event (on one of your cameras) without the frequent use of burst mode (I assume) -
wow! That is a lot of work, and that is without counting the post-processing effort. I assume that your wastage rate is much lower than mine (different domains, professional ability etc.) but I imagine that makes sorting out the "keepers" even harder.
And to have to complete 20 such events through a season (not even a full year?) in addition to your other commissions. I'm exhausted just thinking about it.
