I got a MP3 for my birthday in early December and then I received a M3C for Christmas. Both came with DJI RC controllers. My MP3 has been activated and bound to its remote. My understanding is that the aircraft and the the remote is pre-bound at DJI. I haven't turned on my M3C yet (waiting for SD cards). Anyway, in the end, I want to bind both aircraft to the one DJI RC controller. Since my M3C is pre-bound to its own controller from the factory, do I need to unbind it first before binding it to the other controller. I don't have Care Refresh so that won't be an issue.