Tomorrow I'll shoot some action and I'd like to ask for some advice. Not BIF, but kayak competition (slalom). I suppose you imagine how does it look like.
I'd like to ask, if you recommend to shoot in single shot or continious mode? if the latter, then in which mode - high burst (6 fps) or low burst (3 fps). BTW, I'm using 5D mkIII.
And what should be an appropriate shutter time to freeze the motion? OK, it depends if subject goes toward me or pass me. I think, I'll shoot them coming toward me. But OK, I can experiment and check what time is necessary to freeze it.
I'm more interested about burst mode. I don't want to have million pictures and half of them soft, because AF wasn't able to refocus between each shot in 6 fps mode.
I'm sorry I didn't check canonrumors for a couple of days so I'm too late now for your question but maybe you still want some info for next time.
I'm not quite sure how a kayak competition looks like but it sounds to be quite slow action. Burst will likely work fine but I wouldn't recommend the settings I described in my article because they are for very fast moving / erratic subjects.
The way I always do action photography is setting my drive mode to high burst (6fps) but then I always shoot single frames by briefly pressing the shutter. If a situation arises where the distance between me and the subject doesn't change much but something interesting is happening I always have the option to make shots in quick succession.
Shutter speed is quite easy to determine: Start at 1/1000 and look how it turns out. Use the fastest possible speed that lets you shoot at ISO 100-800 (the lower the better of course). To freeze the water droplets something shorter than 1/2000 would be desirable.