Thank you for your input, John.
Can you clarify what you mean by "more conventional full house trainer"?
I'm going to be spending a few more months learning on the super cub, and more time on the simulator, but everyone was right. The t-28 is definitely a better second plane than the p51 or p47.

It really is too bad the apprentice 15e doesn't come as a bind a fly. It's a 4-channel, high wing plane that (from what I've read) handles VERY well at slow speeds. I really don't want to get into buying receivers and other electronic stuff seperately quite yet...