The video shows @ 2:30 the carbon Rods.
4 were cored through the top of the box until they butted up against the actual track material. Then 7 more arrows were cored from Deck-to-Deck. Just send them through the entire board and sand them off.
What you are creating is a table platform with Carbon legs. The top deck is a carbon table top and ~ under your back foot. The bottom lamination is 1 sheet of carbon and then the arrows are butted up UNDER the base plate. With this design the load is transferred from Deck to Deck and the tracks DO NOT have to carry any real vertical load since the carbon arrows are carrying nearly all the vertical compression loads. The majority of the load comes from the front of the base plate since the foil is cantilevered FORWARD of the front screws.
The 3rd photo was from another board showing the arrows before they are fully inserted.
