I got a small Thule rooftop tent - weighs about 100#. I have the Yakima landing pads which attach to the factory roof rack rails, and which hold the towers that hold the Yakima rack round bars. The tent is attached to the bars. It all seems strong enough but I noticed that when I put my weight on it, if I look closely I can see a slight flex in the 4runner’s roof metal at the points of contact where the landing pads attach to the factory rails. Has anybody else noticed this, and/or is it issue? The metal doesn’t permanently bend or warp; it’s just a little flex under the load and it goes away as soon as the weight is off. My concern is that the metal will be flexed like that for 8+ hrs while I’m sleeping. Can that cause any permanent damage?