Wellll....Only because it tells you to remove it in the manual
It might have no effect on performance, but it would be definitely be bad ju-ju to accidentally put it in calibration mode while it is in flight.
Quadrocopter and Tricopter Mega Link Index
Originally Posted by apejovic
Jesolins, why should he disconnect ch5 before flying?
I´m flying with both ch5 and 6 (3d) connected and everything is fine.