Hi Larry & Rita,
Our wives must be related.
This is what I do to minimize coach movement.
1. Initial level is done with a minimum of jack extension.
2. I then raise the coach for 3 seconds.
3. Over the first day/night the wife may tell me there is too much movement.
4. I raise the coach another 3 seconds.
5. Upon receiving additional complaints (don't always get them) I raise the coach another 3 seconds.
I have found adding additional weight to the jacks, removes much of the motion.