How do you clean your grill or smoker? My WSM is getting kind of greasy and I am wondering whats the best way to clean it. I notice Harry Soo seems to be saying, basically, he doesn't clean his with soap and water, but just scrapes it. Wouldn't that scratch up the porcelain? Also do you have grease drip down from the hood onto your Q when its not cleaned up? U wiped on mine some and also used a scraper/wire brush to clean off something stuck to the side but other than that I am still trying to figure out the best way to go and still keep it seasoned.