Hey All I am thinking to apply that modification to my DJI GO app. I know that after i do it, i will have to HAND pick the channel for the RC and AC to operate. I have two questions. How do i know, which channel will be the best to operate on? For example if at 600 meters away my image transmittion signal becomes weak, i have to go back to the channels and switch to a different one that is more "stable" ? and also what are pros and cons of this mod?