With the release of the new 4WFS under-the-glass NANOPOD, here's some footage on the strength tests.
Both tests use our standard composite fins which are designed to snap off at the tab under severe side stress.
Severe frontal impact is absorbed by the interdiscs which are designed to release the fin, limiting any damage to the box and reducing any lengthly repairs.
Of course it also helps to limit potential personal injury - images of Joel's foot spring to mind...