To OP, if you have one of the newer gimbal/cameras with the steel plate at the rear motor, you don't need any "gimbal savers" or protection devices. Even if you don't have a newer version, I still think it's a waste of money with the price of ribbon cables what they are now. The original problem was that a hard crash/landing or repeated rough landings would cause the motor shaft to loosen and separate from the housing connecting it to the pitch gimbal. With redesign there is NO separation problem, there is no need to try and protect it from separating.
We've not seen a single gimbal separation since the new design was implemented by DJI around October-November. I challenge anyone to show me a photo of separation on one of the redesigned gimbals. The connection is now steel pressed into steel, where before it was steel pressed into aluminum. It should be noted that the other two motors on the P2V+ use the same steel to steel connection, and I've never seen one of those motors separate. The worst that could happen with the new gimbals is a broken or bent motor shaft. And NO gimbal protection gimmick is going to prevent that.
SAVE your money and don't waste it on a gimmick that you don't need! If your gimbal looks like the one in the photo, you are good to go. If it doesn't look like the photo, new ribbon cables are now readily available for under $40, so it's still a waste of money IMHO.