Sound like you had a good time. Well done ;).
Greg Derrett. Most excellent handler. Nice bloke actually, spent many a drunken night and lunch time with him and his crowd (though he was a whipper snapper then, still good handler though).
Fame went to his head a bit a few years back I think, what with teaching abroad and training full time, charging big bucks and perhaps that is where the “knob” bit comes from. When people do well they sometimes forget that it is a priveledge and not a right to be good.. He set up a non KC rules agility competition circuit with his own rules if I remember right. Brace move, though not heard much about how it went. Not as well as EMDAC shows I reckon, or maybe becasue thats more my area?
Not seen his video but he is one of these handlers who usually has the best for his dog at heart, or at least he used to. You will not go far wrong following his techniques methnks.
Good luck and enjoy it.