I noticed on my 1999 Genesis 1000, that on the original burners, the 'center' burner had the gas ports all along the sides, and the crossover tube was a bit differently mounted to the center burner. On the new burners the center tube has the ports all along the top. Dont have any temp data from the original config as I replaced when I puchased on CL and rehabed. Has anyone noticed any temp differences in the different possition of the ports? Just wondering.