BTW, you've just gotten a good lesson in aerodynamics.

The wing on the Twist is a "short aspect ratio" wing. Low aspect ratio wings will give the airplane a faster roll rate than it would have with a high aspect ratio wing. The 4* has a higher aspect ratio wing than the Twist, doesn't it?

You'll notice that most trainers have longer wings right? The idea is that the trainer won't be so quick to roll so that it'll be easier for the beginner to fly.