BurbMan wrote:
Glad it all worked out. Why I started using those BAL scissor chocks that go between the tires, one on each side. I found out that a regular wedge chock doesn't work if the tires are up on boards or blocks to level the unit. That pivot happened once to me before I had the Hensley, almost exactly as you described. One side on blocks and the other side chocked, and as I raised the TT off the ball it started to go sideways. Fortunately it was coming toward me as I stood beside the tongue, so I was able to stop it and lower it back onto the ball quick before it got away.

Hopefully you realize the manufacturer says those are not for preventing a vehicle from rolling.