Originally Posted by
Compton3fox
I agree with you that when adding complexity, you need to consider the possible negatives. However I didn't say you should not allow feather when the AC is airborne, just that there should be a different mechanism to do so and only when both CLs are pulled at same time.
I realised that. I was suggesting that once you create a lock to prevent both CLs being pulled at the same time you add a risk of that lock falsely applying even though you only try to pull one of them.