a little common sence goes a long way.
the post will be shimmed up 2 mm with the lipo trey. Then you can use longer screws up top with a cone washer to hold down the strap.
I run the chekpoint lipos in my car and all i had to do was back out the allen set screws some and put some blue locktite on them to give the thumb screws a little bit of bite on the threads. I believe my set screws are only 2 threads into the post to give the correct lentth. I am also useing the carbon straps.