Originally Posted by PopBeavers

In my experience, the trick to getting the TM to not rock/roll/wiggle, is to chock the wheels very tightly. I set the front chocks on both wheels, and then use the TV to pull the TM tightly into the chocks. Then I set the rear chocks on both wheels as tightly as I can. Then I put the TV in neutral to let the TM settle into the center of the chocks. Then I disconnect.