Interesting to see that both Canadian Chipmunks are not fitted with spin strakes. I would assume the 'flat engine' weighs less than the Gipsy and that would make the spin interesting. In fact with a big bloke in the back and a little one in the front it would make it very exciting. Does the bubble canopy have a positive effect on the spin? The conventional Canadian Chipmunk with the Gipsy looks great but that canopy would be as hot as hell in the heat of downunder. I think I would prefer a little shade to the ability to see where I've been. Arts' Chipmunk, while having impressive performance is no longer a Chipmunk. A bit like people calling a RB57 a Canberra.