RE: Phoenix Decathlon
It is really a more advanced plane than a second plane. This is one of the reasons many people have had problems with them. They LOOK like a nice second plane, but they are aerobatic dynamos.
Look at it this way... In the full-scale world, there are no private pilots who own a Decathlon for traveling from point "A" to point "B". Anyone who owns one uses it for Air Shows - Or just because they like doing aerobatics.
Note: A Decathlon is a Citabria with a bigger engine. Do you know where they got the name Citabria?
It's "Airbatic" spelled backward. - Now put a bigger engine on it, and it's a Decathlon.