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tarquin1 said..
How do they get the lines in the balsa. Or is that a trade secret. Great looking board.
As STC said, no trade secrets.
They score the deck balsa to get a resin bond between the upper and lower glass layers.
STC posted a link to one of Bert's videos on this, here or elsewhere.
If I was smarter, there would be a link here.
The original spec sheet noted this....

Looking at that, they must tint the deck resin black to enhance the look.
Note this is structural, (not the tint), done on this board even though it is going to be painted.
Like STC said, note no black lines on the bottom of the board, or better seen on the bottom of the board below.

Correct me if I'm wrong Rick or Dylan.
Gizzie, those rails look like carbon from here.