RE: Symetrical wing trainer
G'day
I have a Skyraider Mach 1 and I had one years ago. They are very good planes to fly. My current one has a Saito 62 which suits it perfectly. My original one had an OS LA 46 and that was a good match too.
They are surprisingly good at doing rolls and other simple aerobatics (I am not up to the really complicated stuff) and they are also quite stable if you need them to be. Windy weather manners are good too and the price is right.
And now the down side. They are "One Crash Planes". They are very light and do not tolerate crashing and sadly, I believe they have been superseded but I don't know what with. The Mach 2 low wing version (which is quite a bit smaller) is very popular at my club but I don't really like them as they are just a bit too small for me. They too have been superseded.
So good luck finding one but you will be glad if you do.