Hello Erick,
I'm sorry, it's a big file where I don't know where to look.
If you've got multiple kinks it's not a problem if there is the same number of kinks on the top and on the bottom, then you can keep the cutting surface relatively intact. Otherwise you need to synchronize the two curves somehow, either by e.g. dividing them into the same number of points or linking e.g. a point on the bottom curve to the closest point on the top curve.
Best,
Johannes