Hi everyone, I have a MES 35b that I got last black friday from Lowes. I've smoked quite a few items and love it, smoked chuck roast being my favorite so far. I noticed after a couple uses that the wood chips no longer turn to ash, they turn black and stop smoking after about 30-40 minutes. I add new chips on top of those and if doesn't get much better. Any ideas on why and how to fix? I don't have the model I've read about with a metal tray in-between the box and hearing element. And the tray is very close to the element. Thanks!