Healeyman wrote:
Just bought a new RV and am pulling the same Miata towed.
Because my new 30 ft. RV has about 3 ft. more overhang than my previous 22 ft. RV, while going over a series of bumps or especially RR tracks, the towed will experience a violent pulling and pushing as the back of the RV bounces up and down and the angle of the tow bar changes and that suddenly changes the distance between the RV and the towed.
.....
Whenever there is a change in the road height (train tracks, dip in the road, transition into a driveway, etc.) you will feel the toad. That part is normal.
What caught my eye is your use of the word: violent. It reads like you're towing the car with a tow strap.
Look at your tow bar. Are both arms on the towbar locking when fully extended. They
both need to lock. If not, the car will roll a few inches (develop slack) into the towbar when you brake or go through road changes, and you'll feel a strong tug against the towbar when the MH accelerates and the towbar arm (or arms) extend to pull the car.