I've posted praise on this plane many times. I first flew it with an OS 25F ABC. This was plenty of power for standard aerobatics. It's now got a Webra .32. I can't imagine needing more power. I think a .40 or larger would be too much weight.

Don't you just love how the bigger is better crowd insists that small planes are twitchy? I've got several that prove them wrong, but they still don't get it.