UPDATE:  I called Z Grill customer service. They sent out an upgraded heat control immediately. Awesome customer service.  Love this grill.
Even though I ordered this grill mid 2020 and it said it would have the updated heat control so the temperature would stay constant....mine does not.  I got the older version and this is the first time I've used it even though it was bought a few months ago. I finally was able to have some one put it together for me so I could use it.  I'm not happy at all with the temp gage going back and forth from 250 to 400 back and forth when I need a temp of 375 to roast chicken.