Hey Guys, Don't do many 500° cooks but every time the lid is very, VERY hard to open, it opens awkardly kinda sideways cockeyed first then up and when I close it there's a 1/4-1/2 inch gap at the rear with smoke just'a bellowing. After it cools down a couple a hundred, it's OK. A 225° all-nighter is fine. Spring, hinge, band??? It's an XL 6 months old. Was doing pizzas tonite and would'a posted a beautiful spicy crab pizza but was afraid I couldn't even get it out!!!!!