I’ve discovered a better way of using vectors. Look at this image.

It’s all vector. Rendered into jpg.

But look at the difference this new technique makes. It’s a reliable method that keeps vectors all smooth with no kinks. The image on the left was how I did the work but it took ages, just tweak, after tweak after tweak.

It all depends on placing the node at the kiss point of a peak or a valley of the curves and keeping the toggles 0° horizontal and only extending them horizontally.

The same method works with width for inward and outward curves but extend the toggles vertically at 90°

This discovery has been an absolute boon for me.