ALSO WITH THE MAJORITY OF FLYER'S THAT FLY MODE ONE, IF YOU GET IN TROUBLE AND ASK FOR HELP, THEY WON'T BE ABLE TO. A GUY AT OUR FIELD HAD SOMETHING IN HUS EYE AND I WAS GOING TO TAKE THE RADIO TO RELIEVE HIM FOR A MOMENT BUT COULDN'T. HE WAS ON MODE ONE AND NOBODY AT THE FIELD THAT DAY FLEW THAT MODE. THINK ABOUT IT.