Well, you can try it. For intermediate, it might be ok for a while. It's gonna be a handful in the wind, and it's going to couple like the devil.

But look at it like this: if you can fly it and make it smooth, you'll be WAY ahead of the game when you get a "real" pattern plane

Ya know, wierd situations call for wierd solutions. If that's all ya got, then that's all ya got. It might be just fine without stretching it. Stretching it will definitely change the way it flies....maybe better, maybe worse. Either way you just have to decide if it's worth the risk and then make a decision. I'd do it, but I'll try anything just about. It may be awesome, who knows. If you were attempting masters of even advanced I'd say no, but for intermediate, sure why not?

I'd be interested to see how it flies myself.

-Mike