Weber also claims due to the angle of the "burner guards", it helps the food juices smoke back up to the food. Hence the name "Flavorizer Bars". But I agree that their main purpose is to prevent burner flare up. I've had a Weber Genesis before and really can't tell the difference in the taste of my food using a Weber Q 1200. Maybe some people can tell the difference, but not me.Flavorizer bars are just a fancy name for burner guards. They function mainly to keep drippings from getting on the burners and flaring up, and the Q320 grate is designed with a solid portion over the burners to prevent drippings on the burner, achieving the same thing, so I'd say its a wash on that front.