Sorry I'm sending this back. The actuator has a small cylinder with a hook on the end that rotates 360° horizontally and moves to different positions depending on how many times you press a key on the keyboard. Try to figure out how many times you pressed the button to get your arm into a position where it could be loaded, rather than pressing a single button that rotates it and relieves the load when you didn't. I didn't want to be thrown away, that was problematic. In addition, during flight and even at takeoff, even the slightest line sag or slight turbulence can cause the line to come off the hook. I'm going to try one of the other drop mechanisms that has a push-pull pin against a horizontally rotating hook.