I was in the same boat as you and ended up buying a .60 size kit that is a bit more tame. Unfortunately I have been working on finishing the kit since last Thanksgiving since I have been so busy. In the mean time I went out and bought a H9 Twist which is similar to the Somethin' Extra. It was cheap and I threw it together in a weekend. I absolutely love this plane and landings are easier than with the LT-40 since it doesn't want to float by as easily. If you have truly mastered your trainer I say go for the Somethin' Extra. You will be happy you did!