Need some input on concrete breaking material??

[Earl Weiss]

I've seen these types of break done before. How are they cheating though? The stones aren't laying flat on a surface, but that's the same as all downward breaks?

Watch closely. Videos 1&3. Where they have on hand on the end of the rock they raise the other slightly so it slams down into the support. That is why below the support they have another piece of stell or cement. Video 2 is supported at both ends but just barely. It's struck at a slight angle so it slips of one side and slams into the base. That is why the supports are always very short. So it can drop off a half inch and slam into the base. Most other breaks spanning 2 supports are 12 inches or more above the base. There is a reason it is so close.