I have taught on both the stick and 4*, both were just fine as a trainer. A FYI, if you hook up your friend with a buddy box and teach him it will make you a much better pilot. By teaching you have to go through all the basics over and over again. Then you get to the point you are just standing there with your finger on a switch telling him what you want him to do with the plane, very dull when a student is almost ready to solo.