The cover keeps it in place. The pillow, although soft, is just something for the gimbal to get stressed against as it moves about. Say you had to hit the brakes hard and it slipped off, it could just be the last time you ever got to fly the...
A violation that when taken lightly and repeated without thought, will almost certainly lead to some kind of incident or injury? If you would like to visit your local Emergency room and ask around I am sure you will find a few "I didnt plan for...
As soon as I have finished flying for the day, the gimbal cover is the first thing to go on. Keeps the gimbal mechanism and lens safe and clean. It is worth the few seconds.