Other activity motivated forms of flying that I forgot and ones that pretty well rule out any form of tray and fingertip flying are ones where hand launching by the pilot is the norm and that would include many types of gliders and even more specific would be what are know as hand launch gliders and with these the norm is for the pilot to do either a javelin or discus launch while holding the transmitter in his opposite hand.

Also in this category are many types of what are known as, 'Old Timers' Its quite common here to for the pilot do hand launch while holding the transmitter in an opposite hand.

John