Thoughts on the Gypsy
My Cub lives at the Auster capital of Britain -- Eggesford, with, I believe, 9 flying and 13 Austers in total -- so I'd better be careful what I say, but... by God the Gypsy is a noisy engine to fly behind. And thirsty too -- 30 litres an hour plus a couple of litres of oil.
Pays your money, takes your choice.
QDM