After 10 days and 7 cooks, I have burnt the felt gasket. Read lots of good stuff on the forum and assume for now that I got an Egg with faulty adhesive on the felt. When cleaning the lip I notice that with the gasket gone, the front of the lid rests on the bottom, and there is a gap of approx 3/16" at the back. Is that correct/acceptable? The set-up was done by an authorized dealer. It's a Large (24").