No, it was the customer service I received while building it, before I ever flew it. I realize that the 120 is far more than recommended, but it was all the things that happened while building's and great planes attitude that bothered me.

The firewall literally fell out when I was tightening the motor mount bolts. The covering was literally coming off the airframe.

And, I'm sorry, but even with the 120, I wasn't "wringing it out" and I was way low throttle, to have that entire former that holds the front of the wing come loose is unacceptable. That is not engine choice. Just poor build quality.

At any rate, I like how it flies well enough that I've got it nearly all back together now. Hopefully I can fly it again this week