I can see that, bugs spawning via the z-axis sorta breaks the 2D plane everything else is aligned to, and can look weird.
I did write the physics code, but it's deceptively simple! Each strand is composed of a series nodes, each node tries to stay within a certain distance of the nodes its connected to. Add a lil' bit of gravity, some spring physics, and that's basically it! Mebs I'll do a a tutorial video on it...