You should be able to do a ton with that trainer. Add more throw as stated, and it will do a lot. You should be able to spin, snap, and learn to fly it inverted, even if you have to hold full down, it will do you good.

Look at the somethin extra for a second plane. I had a student get the 4* and didn't like it, but he loved the SE. It is a good plane, will do anything, and is easy to fly and land. The 4* is a good plane for some, and there are many others, everyone likes something different. The somethin extra is pretty versital though.