The guy was ex-French Air Force.  I guess his idea of a break was more aggressive.  
Pretty much what the report says. Also quite the achievement to land that half-a-wing Skyraider.
"The Skyraider pilot had served initially as a fast jet pilot 
and  instructor  in  the  French  Air  Force  and,  as  a  fast 
jet pilot and instructor, he had taken part in and taught 
break  manoeuvres  which  tended  to  be  more  dynamic 
than  those  briefed  at  Duxford."