I let it down off the jacks and it sunk about 4 inches. Didn't dare try hitting the gas
Got two sheets of 3/4 inch ply cut into 2 x 4 foot sections and lifted the front easily and filled in the hole and slid the boards under.
Back was tougher, the jacks kept sinking, so it took a few lift and add boards to get it high enough to get a ply section in at an angle. I was careful to go slow so I didn't twist the frame and the back came up even, Was a 3 inch difference on one side to the other based on how many boards I had to stuff under. One side was softer. Was able to power on the board and then it was a matter of just going a few feet at a time.
There are depressions but It saved the grass. I'll roll the car over today and see if I can even it out. We are due for a nor'easter Wed so I had to get it done.