Thanks for bring that up Kulwin Park, I flew Kieth's Tiger a number of times, and also remember his spotty, pimply teenager son too.
I even flew that same chippie too, the best flight I've ever had, weather was perfect and can still vividly recall doing a knife edge maneuver and glancing up to see a beautiful little red tipped wing carving up the deep blue sky with the sun reflecting off every rivet along the spar. Magic.
Those were the days...and they were cheap to hire too.