Countour Curve Division Problem

Hello, I’m trying to figure out how to divide these contour curves so that the division points line up perpendicular to the contours. Any insight Helps.!

This is my current situation

Curve Division Problem.gh (4.4 MB)

One of the ways…
Pay attention to fine-tuning part.

Curve Division Problem_RE.gh (4.4 MB)

Thank You!!!