I think that a properly setup, low control throws, forward CG and flat pitch prop, SE will make a good second airplane. The SE will have a more growth potential than a 4*40.

If you want to build something a little nicer that is a great second model with a lot of potential then you want a Bruce Tharpe Venture 60. This model isn't as well known as the 4* models, but it's a much better model. Check it out at www.btemodels.com