FAIL to trim/split rightly

[benji_strauss]

HELP: I’m trying to split/trim a surface with 3 normals but either fail or get results I didn’t intend. I’m trying to split a surface into panels. The endgame is to control each panel as pictured with the Isotrim pic. I was able to get the correct grid on the surface but not trim correctly. if i bake and trim it works fine but i need to stay in the GH all the way. If there is a conceptual way like the isotrim way it will be even better. Thanks to the commenters.

Bait Shemesh panel divide.gh (76.8 KB)
Bait Shemesh_Shell new.3dm (291.4 KB)

[inno]

this is what I see when I open your fies:

if you want to get something like in your picture I guess I would star from something like this?

isocurves_example.gh (13.1 KB)