I know this topic has been in the forums a bunch but I am a new owner of a MES 40 w/window and I got the retro kit free but haven't installed it yet. I've only smoked about 8 times using the chip pan and the amns and I've had fantastic results. I did notice the back right hot spot and will probably attempt one of the mods I've seen on here, like the tile or tinfoil. I'd like to weld a plate of some kind but I don't know how to weld! Yet. I've never cold smoked anything yet either, which I think is a main reason for the retro kit, being it won't smoke at its lowest temp. I do have the amns so that shouldn't be a problem. What are the major benefits of installing it? What have been others main problems that they need to install it? Thanks a bunch!!