The felt gasket on the Primo is junk too. One or two high temp pizza cooks and that thing is toast. Once you burn it real good it isn't that hard to scrape off though. I put a cotronics gasket on it and have not looked back.
If you plan on buying a Primo or a BGE, just know that you will be replacing the gasket. The cotronics is not expensive and it is easy to do.
Primo Oval XL, BPS drum, Weber gasser