[8D] Thank You LCS , and with all due respect to Jerry ,
I believe the intent of that rule is for the pilot and plane to have preformed a preliminary "shake down" flight , together , prior to being flown at a crowded event so as to familiarize the pilot with that particular aircraft . As we all know , certain aircraft have their own quirks of flight and a crowded contest is no place for any pilot , CD or not , to be experiencing an unfamiliar aircraft for the very first time .

This is why I spent my working years as a mechanic , there is no different interpretation of "broken" . It either is or it isn't . and if is IS broken , I ended up repairing it . no negotiating required .