Modeling hard edge zig zags

I'm trying to model an adidas samba shoe as exactly as possible and the zig zag edges on their 3 stripes is giving me a headache.

Tried using the knife tool to just cut zig zags by hand but the combination of subdivs and shrink wraps left it a mess with rounded points.

Thinking I should just go w/o subdivs and use autosmooth but was wondering if anyone on here has any other suggestions.

Any suggestions would be appreciated.

... Well nobody commented but I kinda solved it so I figured I'd put an update.