Just got my WSM smoker last week and smoked a Pork Shoulder and Chicken on it over Fathers Day Weekend. Everything went well but when I pulled the meat off, I left the lid off and apparently it got extremely hot. The Silicone Grommet melted on me. I believe this was already there but I wanted to check with the forum since I could not find this on any pictures I looked at. I noticed a seam on the center part of my WSM, pictured below. It still fits on the bottom fine but I dont remember seeing this when I put it together. Is this normal on all of the WSM smokers?? Thanks for your help!