I recently bought the cold smoker attachment for my MES and set it up for the first time today. Something doesn't seem quite right though; is the wood chip tube supposed to rest flush in the groove inside the body of the unit? When the chip screen is on mine, the tube rests directly on top of the heating element, causing a 1/8 to 1/4 inch gap above the groove. When pre-seasoning it, it seems like a lot of smoke was escaping out of the lid. I'm confident that I have the chip screen on properly. Also, after pre-seasoning the unit for an hour I turned it off and let it cool for about 30 minutes. When I opened up the chip tube cap, the remaining chips immediately caught on fire. Anyone else experiencing similar issues? Or is there a chance I have a bad unit?