A couple of quick things:
Jim Lynch, what did you have for a motor on your Pitts?
Ynot, good on your for understanding that overpowering the plane may cause problems that are not the designer's fault. You solved the problem, I'm glad for that.
Tailtwister, don't count this plane out. I have flown it with a 91, it was a beautiful, beautiful model. It was the first real "premium" ARF and paved the way for many others.
Just not with a 150!
As far as Rec.models.air goes, I would take ANYTHING I read there with a BIG grain of salt, really.