What are the set points on your pid? I have a pid in my Masterbuilt and put the temp probe within a few inches of the element. I have it set for a swing of 3 degrees so yes at the beginning it will cycle on and off rapidly. But as the chamber heats up the cycles slow down, and the temp settles. My MB has no air vents and only one small fluid drip, and one upper access holes. I checked temps using four wired thermometers spaced top to bottom and after warm up it was pretty stable. Hope this helps a little.

@Joe1 Yup, I made them out of the Mexi Chorizo and I used about 22 lb of meat to a full bag (as this is not designed for a cured sausage I wanted to make sure the salt content was high enough in the meat) sure gel and stuffed them into 19mm sticks. Very tasty sticks!