Found the MES add on for $39 online. Got a 3" x 24" vent pipe & elbow at HD. Temp has not been an issue but have a question about leakage. Smoke coming out of the lid of the add on. Opened it up & see the smoke is coming from under the cap for the chip holder. Anyone else have this issue? How did you remedy it? Doing my first batch of cheese. Hope it turns out OK