The Killa Grilla I have for my 18" is model KG-7432. I have one of the first models that the owner, Brian made for 18"ers. It has gaps near the handles where rods were omitted. Really didn't serve a purpose as the gaps are to small to drop chunks of would onto the coals. Using gloves, I have to lift the grate off after preheating to add my wood chunks anyway.
As shown in the photo from the Killa Grilla website, the newer redesigned grate does not have these gaps. The rods continue right up to the handles. It equates to more grilling space.