I have a Wagner #7 nickle plated skillet with Wagner logo centered, the nickle plating is worn pretty bad giving it a kinda dull gold looking color. I would like to take it back to the bare cast iron and re season it to use it is very nice sits flat very smooth. Any advice on the best way to do this? I usually use self cleaning on oven to do the initial clean on the cast iron but I have read that is not good for nickle plated skillets. I just want to take the skillet to iron. Any and all suggestions would be appreciated.