I was noticing how much my trailer moved when chocked and the stabilizers tight while camping. I had made a chock like pictured but I used the Harbor Freight wood clamps instead of 4x4 blocks.
I only used the chock when unhooking at my house which is on a little hill just for added security but the last time I went camping I decided to chock the wheel with the wood clamp and WOW what a difference just having one set of tires chocked up tight made with the rocking. I plan on making another chock and doing both sets of tires next time out.