Hello- I'm getting better with my MES 30, but still have a problem. The chips I put in last all of about 20 minutes before the smoke stops... If I add chips on top of the "black ones" with the chip dispensor,they don't seem to smoke much. So here I am, every 30 minutes opening the door, pulling out the tray so I can empty it and add new chips. I know I'm doing something wrong. Any ideas? Thanks.