Had the honour of gaining my PPL at Thruxton (Wiltshire School of Flying) in 1961, primarily on the Jackaroo (bastardised Tiger!?)!
Final flight with the CFI (John Heaton) was inflight engine restart (remember, no starter motor!)!
Anyway, I'm curious to know whether SSD has had the dubious experience of flying a Jackaroo? I'd be interested in your comments re handling as, from my experience, it handled like 'a serving spoon in a bowl of rice pudding'! Certainly NOT aerobatic!