It's not a matter of "forcing" the plane to do those maneuvers. If you can't do them on a trainer, you're going to have a handful trying to learn them on a second plane. I see too many students rush to fly their second plane, and spend all of their time flying afraid of a plane instead of enjoying flying. They simply weren't ready to move up. A good rule of thumb I have for my students is when they can "comfortably" fly an entire circuit of the field inverted they can start thinking about moving up. I also think a student should burn about a gallon of fuel doing touch and go landings.

Give the Nexstar some credit, it will do a lot more than students think it can. I have fun flying trainers, I love flying all the maneuvers with a trainer.