I'm pretty sure any time the top is open or back, you're supposed to flip that forward. It's only flipped back to allow the tops to latch to the windshield from what I gather.
Has anyone had hands on with this yet? Does it possibly stop the popping sounds that some hardtops are reporting?
https://www.bestop.com/products/sunrider-for-hardtop-21-22-bronco/
I've used this rack and would definitely recommend it. There is some movement but the design is overall extremely stable. I wouldn't hesitate to use a good Kuat or similar either, though.