garwig,my cast iron is what I use all the time. I had Charbroil grills for the past 40+ years and that is what they had so when I got our large BGE I boought the cast iron. I did not season it and it stays in the BGE all the time with no problem as far as rust etc. We live in Sarasota, Florida so if it works here on the Gulf of Mexico it should be good any where.
