ORIGINAL: Speedy-Gonzales
A good 50cc warbird will fly just like a pattern ship in the air but a little trickier to land! I would not suggest referring to any warbird as being "lame"! You may just strike up another war.
Wow where did this come from? All the warbirds I have ever flown have wicked control cross coupling. It's all that dihedrial and high mounted stabs. Back to the OP. My second airplane was a Miss Norway pattern airplane with a Webra speed .61 in the nose. Had no issues with the transition as the Miss had great manners. The Mach 1 that followed the Miss was a differnt story. That one loved to land fast. I would say it all depends on which old school pattern airplane you choose. IMO a modern 2M pattern airplane would be out of the question. Not because of difficulty but because they are quite fragile in comparison the the classics.