I just bought a 22.5 OTG on Craigslist. I have a Genisis, but I want to try charcoal and the smokenator. Anway, the kettle is a little wobbly and the top vent is a little loose. Two questions: Is there a way to tighten the vent? Is there a way to remove some of the wobble? It feels like it is wobbly where the legs meet the kettle. Thanks for all of the great info on the forum!