Ive read the 8FG training section manual but I'm not clear on a few things.

I'd like to have a simple 4 channel electric plane set up on the 8FG and occasionally use the 9C as the second box for training my grandson.

Would the 8FG be the Master or Instructor unit or the 9C?

Is the special cable mentioned in the 8FG manual used or the conventional cable?

Any other hints or advice?

Thanks,

Brian