And paulo, how about the use of rudder in an Immelman!
(Hello BRL
)
I can't help with finding an instructor, since all the real aeros I've done have been the States. (If you want to do some aeros in Arizona, though, let me know and I'll point you in the right direction.)
Paulo has a good point about what you're actually going to do with your aeros training. If all you want is some more confidence and a better understanding of how your spamcan flies, then I'd guess that something like a Cessna 152 Aerobat would be fine. I did spin training in a PA28-140, which was ideal since most of my flying at the time was on the very similar PA28-161. (PA28-140 can't do much in the way of aeros apart from spin, though.)
On the other hand, if you're planning on actually doing any aerobatic flying yourself, you'll want to be trained on the type you'll be flying. One of the biggest shocks I had was trying to loop a Pitts after having done all my aerobatic training on a much-lower-powered (but still great fun!) Great Lakes - and stalling at the top of the loop because the controls were so much more sensitive than I was used to. FNG has been kind enough to let me aerobat his Cap10 a couple of times, and I have to admit I don't feel comfortable with having to look after the engine - all the aerobatic training I've had has been on aircraft with a constant-speed prop where the engine pretty much takes care of itself. And so on.
But whatever you do, you'll enjoy it - aeros are great fun!
FFF
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