Hello all I'm new to VWBB!!! I just purchased a brand new WSM 18.5 from amazon, and I'm looking to stop using water in the water-pan. I have seen posts where folks are using clay saucers. My question is what size should I purchase? I was thinking "14??? I'm limited to shopping only online (amazon) since I'm serving our country in Japan. Also, should I foil the water-pan, clay saucer and place both of them in the WSM? Will I notice a difference in temp without using water? Thanks for the input. I have been grilling for years, but now I'm smoking!!!