[BennyB]

Ok, I understand that you're trying to make a point about the subjectiveness of the pulling rule, but to me (and everyone i've shown this to) I can't understand how you think i'm touching the wall. If you were standing there looking down it was obvious my hands were nowhere near the wall in my last stroke and when I came up. The perspective is always better from the viewpoint of a judge standing right in front of the athlete rather than an amateur video taken from several metres away.
Which is why the judges decide first, and if there's any uncertainty they then look at the video, not the other way around.