I used to hire C172s from Schutts at YMMB about a quarter of a century ago (seems just like yesterday) and I remember they had a Chipmunk and a Tiger Moth in one of their hangars owned by a former TAA retired captain if I'm not mistaken. Schutts used to be the happening place on the aerodrome with it's fleet of Cessna's. Seem to recall they had the contract from the SEC (State Electricity Commission) to inspect power-lines which involved flying around the state at 500 ft AGL, as well as the Triple M painted C172 for the morning traffic reports. I believe many of their instructors have gone on to join the majors, which is testimony to their professionalism. Pity the place has shut down.
Oh, and if I'm not mistaken, we used to be able to fly 6 to 7 circuits in an hour back then from blocks off to blocks on. Goodness knows how many circuits you can fly in an hour these days with the traffic and wide circuits.