Hele grote caretoeter!

Besides from this totally uninteresting "myth", your testing method is completely wrong. I doubt that both players were equally skilled players who always used the Jackrabbit brother they were playing with in this test. If they were equally skilled, the score would be 5-5.

A real experiment would involve another test to see whether luck has an influence (play a Spaz vs. Spaz and a Jazz vs. Jazz round too), and take into consideration whether the level that was played in might have been more suitable for Jazz or for Spaz.