The Wood

Now it's time to start!
I got four oak beams (26 x 16 cm, 2 m long) for my workbench.
The price was very good, the drawback are the numerous cracks on every side of the beams.
What to do?
Filling the cracks with epoxy, with wedges ... I wasn't sure about the solution.
So I wrote an email to Christopher Schwarz and he answered me!
While I was waiting for his answer I had the same idea as him: Butterfly splines ... so I started to make butterfly spine after butterfly spine ...