Uscartool- just how stiff?

Heya, does anyone know if there’s any info posted or shared anywhere showing the stiffening properties of the uscartool level 3 kit + rocker reinforcements? Puttering around ideas for a pro tour (I think that’s the word? I just want a modern handling car) build, and I don’t think I wanna hack away the inner fenders to put a Schwartz g machine in. Schwartz claims 200% stiffening, was curious how uscartool compares.
Author: Sour