Just picked up a stainless MasterBuild smoker yesterday. I've been reading a ton of post trying to get a starting point and see it mentioned about the upgraded version of smokers. This smoker is stainless on all sides and I believe its the 30" size. Its a Cajun Injector smoker, which I believe is built by MB. The side "trap door" where you add the chips is a spring loaded door and not a tray like the pics I've seen on here. From the door is a down sloping tube that feeds the internal burn tray. I picked it up for $89, but want to make sure its not a "problem unit". Model number is 22174.01940 Thanks for any help!