In anticipation of my new Zen Integrated, I'm in the process of building me a set of NFX's - walnut plywood with birdseye maple caps around the driver and top - should be sweet.  

I purchased the plan from the website, but can't figure out the placement of the internal ducts.  Specifically refering to Fig 25, it shows a 4" angled piece that I think traverses top to bottom placed against each V brace with the angle butting against the side panel.  This is shown in Fig 27, but the description seems to be mis-worded.

Anyway, its hard to describe at best, so I was wondering if anyone has a top down picture of duct panel.  If I’m understanding this correctly, the placement of the vertical duct panel will create 4 discrete ports with sound waves travelling around the balls and out each of the side vents.  Arghhh, this is so difficult to verbalize.

Any help is much appreciated.
Darren