Hello, In the experiment the closest you got to accually spliting an arrow was when it split just a section of the arrow. The reason that happend was, the run ( run is the angle of the fibers in the wood) of the arrow shaft that was being hit was not going parallel to the sides of the shaft. The spilt will follow the run. If it is perfectly parallel to the sides it will split in two. I work at a tonewood mill, the run of wood is a very important part of instrument wood. We deal with run/split relationship every day.

They did that in a revisit already, someone with the perfect grained wood actually sent some to the MBs and they still could not get it to work like the myth said

another fan who works at a mill sent them the straight grain wood for the arrows, still BUSTED!!

I saw the revisit, the grain of the wood and the run are totaly oposite properties. The way that the arrow shaft split on the show, i can guarantee that the run was not perfect. Wood will not split across the run, it will cut across it but not split. If the run was perfect the myth would prove to be Confirmed.