Should I go for the lowest size (.15) that the instructions call for which is gonna make it go reallllllll slow as the instructions say, or for a little more power to do some tricks go for something in the middle like say a .19. Don't think I want the full size (.20 CORRECTION - .25) as it is only a small plane and don't wanna do too much with it. And what is a good radio to put in it? Maybe I should get a 3-channel cause what would I do with the aileron servo if it comes with it, or should I just get the 4-channel with 3 servos and get the 4th servo at later date as needed? Maybe I should just get one new radio and get the extra accessories for the 2nd plane - but is that cheaper than getting a whole radio setup or about the same. If it's about the same I should just get a separate radio. Any thoughts???