Charbrofire 7566 Replacement Griddle for Weber Genesis 300 Series Weber Cast Iron Griddle Genesis E-310 E-320 E-330 S-310 S-320 S-330 EP-310 EP-320 EP-330 CEP-310 CEP-330 ESP-310

Nevermind. Found them: (1) https://www.amazon.com/dp/B0D59PJJYR and (2) https://www.amazon.com/Charbrofire-7566-Replacement-Griddle-Genesis/dp/B09NQKZRKM. But these are different sizes. If 18.9" fits so tightly on your photo, how do you use the other one that is 19.4"? Also, if you cut the grates to fit 11.2", then how does it work with 12.8"?