Since I've built my tricopter and swappables, I've had several people want to try to fly them. I've done the hand-the-transmitter-over thing a couple of times but I'd rather have them fly with the TX that they are familiar with, or a second one of mine, then I can "take over" when I start to get worried. Using the trainer port would save a me a couple of seconds in recovering the aircraft and would transfer the control back to them again when it is "safe". The problem is I have no idea how exactly it is suppose to work, how to set it up, if the TX's have to be identical, how to test the config, etc. I have an idea of how I think it is suppose to work but the reality is I have no idea where to even begin. I'd like to see a video explaining what exactly is possible, then move into how to set it up. If you could use a Turnigy TX in the example, I think that would cover a lot of newbies. If you use a Spektrum, it should cover a lot of people who like to purchase their equipment locally - either way is good, I'd just like some direction!