Hi all, Im hoping this is the right place to ask my questions. I have a Masterbuilt GS40 that i have been using weekly for about a year. I have been able to make some amazing meats and have been getting pretty good at it. But i have been having a issue. I cant keep my temp below 300+ when its 80-90 degrees outside. Where in the winter i can have it at 150 all day. So my ribs are cooking so fast. I thought about moding another vent like stove pipe with damper on the top. Any advice for me?