I agree with those who've said: train in the best aeroplane available. Stik's idea of using the Cap 10 is a good one, even though I'm biased. David Robson's aerobatics books reckons that it's the ideal training aircraft (and not just for aeros). The French Airforce thought so too. See also similar comments in the latest edition of Flyer. The advertised rates for the Sherburn Cap 10 are really good. I would say: go for that or the Robin, or a bit of both. There is no need to train on the usual tincans if there are more interesting choices available. When I dd the PPL, I avoided all the London Cessna/Piper schools and learned on Beagle Pups and a Bulldog. Much more fun, and the option of a loop or a roll to conclude a lesson was a bonus.