***State law (not sure about Federal DOT) here requires FOUR load securement points.***

Good point, will look at state laws. I have thought about one chain front & one chain rear many times & said to myself, hmmmm. As I'm typing I remembered the time I was towing at black night to Blackhawk Farms, stoped by a state troper because the two chains from the trailer to the truck were sparking. He looked at the car tie down & said every thing else looked ok. Hmmmm I'll add an extra locked chain just to make sure if either of the others let go the car stays on the trailer. Thanks