Hobie 17 dolphin striker spacer

Guys, I need some help on the set up of a hobie 17 striker post spacer.
I am updating a Dragoon's mast bast/step from the Hobie 14 style to the Wave mast base and 17 step. I need to know how the spacer for the 17 striker post sits in the front cross bar. Does it pass through the cross bar, or does it sit inside the bar?

https://i.imgur.com/Iz9koKD.jpg

https://i.imgur.com/swy1QAa.jpg?1