I probably would upgrade also, I see considerable shaking sometimes, of the vibration board and gimbal, when accelerating flying out, it does not seem to show on the recordings in the form of jello but the effect, can be seen if you watch the video real close. the gimbal pretty much eliminates the shake but the very slight compensating effect, can be seen in the video, I looked in the store also and their is no note on compatibility, Hey Dave will it work?
Are you asking if the X5 vibration board works with the X3? I can confirm it does, I have it on mine and I got it specifically because of what you mentioned, the shaking when flying up and forwards at the same time.
The new board practically eliminates it but it's a lot of money for a piece of metal... If you're fine with that then I'd say go for it.
Its the 2nd time DJI support says this here so I bought this expensive part but the first test did not show any advantage and my jello problem didnt change. However because of the weather I could not do direct comparison of the two boards now but I will do and hope to see a difference.
My foot pain was immediately relieved. I have plantars fasciitis. Because of this I've spent money on inserts. First inexpensive, and then better more expensive inserts. I purchased better shoes and sneakers. I've tried taping my foot. Doctors, stretching, exercises, etc.. etc.. However, I only got some relief. Nothing helped much or for long. Then I bought orthofeet sneakers. It has been life changing. My feet no longer hurt.