I recently purchased a Cold Smoker hoping it would be better than the chip feeder on the MES. And it is for the first 20 minutes or so. Then the smoke dies down and I have to open the unit up and knock the chips down as the chips seem to get wedged in to chamber and will not fall to the burner. Now my question is, has anyone have one of these units? If so do you have the same problems and how did you rectify the problem. Any suggestions would be helpful.