I’m less focused on high winds, I’m thinking of winds 15-30MPH. Here’s what happens and how I’ve temporarily solved it.
From the factory, there’s no way to tension and secure the flaps of the GFC door tent so that they don’t flap around and whack against the side of the tent in the wind. Ground tents all have this.
Just using tarp clips to tension the sides to the external tracks solves this problem. Its not solved by zipping the doors all the way down because there’s still no downward tension on the tent fabric. Without that tension, every gust pushes the slack fabric up against the inside of the tent and creates 30-50db impacts.