I struggle with this too. The trick is to back the two knobed scews off enough until you can push on one and the block with the pin sticks up enough for the pin to slide into your stud. You could use a washer on the swivel but it is not required.

You really need to back those screws out and push the block up.


If you have the 3rd generation replace the Teflon pivot washers with Stainless flat washers. It is a big improvement.