I have 180's on my roof (10) and I inspect them often as they are held down with 3M VRB adhesive which scares me, but they haven't budged and I haven't found one in the toad windshield yet. Yes, these machines flex as we all know, enough to span the width of a solar panel and cause an issue? Doubt it, but also the fact it's on an adhesive connection may give it some flex, not sure. I've also had mine endure a significant hail storm without damage, so they are pretty durable. I'd be more concerned about the adhesive panels vs. the residential types.