So in high wind, 40+mph cross wind type driving I have had multiple occasions where the small mid span hold down bracket does not do its job.
Basically the Girard full wall side slide out awning has three items that hold the cover closed. At the each end is a magnetic to metal part that holds the cover closed. Mid span there is an arm with a rubber bumper that presses on the lower edge of the cover.
While the magnetic latches seem to work fine on the shorter passenger side slide out awning covers they don't have the strength in a high cross wind situation to keep the FWS cover closed. The rubber bumper arm helps but in a strong wind I found that the cover would jump over the bumper and arm and then start banging and be unable to close since the cover was now over the top of the bumper bracket. It couldn't be latched until the slide is run out and then closed again trapping the cover under the bumper.
It was so bad that it actually knocked the bumper off the bracket.
So I got a replacement bracket and then added a curved piece of 1x1/8" aluminum flat to the bracket. Radius of the curve is 3".
I covered it with shrink wrap to stop any possible scratching to the awning cover.
Once I get back on the road I'll update this post with results. I've got the old bracket and if I still have an issue will add another bracket towards the front of the coach.