All radios perform the same functions and the differences are being able to program in end point servo adjustments that are used to adjust control linkage with out making mechanical adjustment to servos and control horns(which is great saves time)and other functions that you will not use on a trainer or second plane! The radio will not make you a better flyer or aid in the learning process on a trainer or second plane! I use the programming on my 3-d planes to set endpoints, set expo. on the control surfaces, and mixing different control surfaces for flying more complex manuvers such as rolling circles.