I am about ready to pull the trigger and buy the cast iron grates for my Performer but I have one concern. I fire up my coals using a chimney on the center of the coal grate and the propane start. Will I be able to continue to start my coals this way without removing the entire grate? The cross section looks like it goes directly over the center of the grill which would prevent me from lighting my coals this way with the grate holders on. Is it a pain to remove the entire grate? Will I be able to light my coals with the chimney by just removing a section?