Salomon synchro center rental bindings

Anybody know what the screw on the top of the toe adjusts and how you
set the forward pressure? Only other words printed on the bindings are
'synchro C' and 'driver'.

Yeah, I can drag them over to Chick's across the street and throw myself
on their mercy, but I'd rather hear it from somebody I trust.

--
Cheers,
Bev
++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++
"...so she told me it was either her or the ham radio, over."