Waterfalling is when birds roll but not at the same time. It's like a domino effect where one makes the other go. It can be single birds rolling or groups (4 or less) rolling and then the next one going. If at least 5 birds roll at once then it is no longer water falling because it would be a scoreable break. Waterfalling occurs because the group has not learned how to work together let.
Nick, like dave said when the birds do not start the roll together it would be a waterfall. All the birds in a break must start the roll within 1/2 second of each other in order to be counted as a break. A bidg break would probably be considered 10 birds or more in a break. Hope this helps, Kevin
