Well, I'm new here and am going to jump right into the fray here. Lots to look at and read to see what's going on in Renderosity.
  I have to comment on Onslow's comment about machine gun shooting to catch action. Good shooters do not do that to catch the peak of action. an example. An ok pitcher in highschool can throw a fastball at 80 mph meaning 118 fps. The ball theoretically travels 6'6" in .51 seconds, I theoretically because at the time of release they are actually closer to the mound which means a shorter distance the ball travels, but we'll go with the .51 seconds. A Canon 1D MKII shoots a fast rate of 10.5 frames per second. If the timing is precisely at the moment of release the shooter is lucky to get 5 shots off before the ball passes the plate, that means the ball travels just over 12 feet between each shot. A good action shooter can nail the shot at least once, maybe twice in a game. The kicker to this is that the ball in only in contact with the bat for 1/1000 of a second.
  Now take the guy jumping from the ladder across the water. We can assume since he's jumping with a sudden burst of speed that he's moving at about 5mph, or 7 feet per second. Looks like he's only gone about 4-5 feet, so he's made his move in less than a second from leaving the ladder to the time he hits the water. Just like the action/sports shooter Henri anticipated the action and caught the peak.

  I will grant you that lots of folks will rapid fire and hope for the good shot. But to get those truly perfect timing shots takes experience,anticipation and action. It's really not as easy as just machine gunning all the time. Look for items from Robert Hanashiro who shoots for SI, he's done several good write ups on timing your shot. After all, going through all those machine gunned shots takes time and time is money for the working shooter.

             Tony