I haven't joined the conversation about the flexi wings because I didn't have any damned idea of what was really going on. Martin Witmarsh said that McLaren didn't understand it either, but apparently they have figured it out.
It is the bib stays: the setup includes a segmented plank, stay dampers, and sliding splitter attachments that allow the nose to droop. That is one of the secrets to RBR's success: their nose droops.
The bib is the hanging structural element that supports the splitter. The splitter is a piece made of heavy alloys and is one of the primary placements of ballast.
Witmarsh said, "The [FIA] requirements for Monza really will end what has been a misnomer: the bodywork is intended to be attached rigidly with no degrees of freedom and when you look at bib stays that hinge, buckle, slide and have dampers, it seems a bit bizarre to me."
Wow, that says a lot.
Ross Brawn suggests that the new scrutineering procedures at Monza will reveal an illegal floor on RBR, and perhaps Ferrari, and that fact may change the end of season run to the championship. Here is another pic:
It has been suggested that if the nose could droop due to underbody flexibility, then the wing could pass all of the requied dead load tests. The nose could droop due to underbody flexibility but would go undected as no tests are currently employed to detect floor flexing that far forward.
The old flexi floor controversy was directed to effects on the difusser via mid-floor flexing and had nothing to do with the front wing. My my!