You don't need a new control panel unless you are unhappy with your current one. The control panel has absolutely no effect on the burners. If Samuel's looks better than yours, you might want to swap them out. Otherwise, you are good to go.
The stamped ones are just thin metal that is bent into a semi circle. The high quality ones are solid rod stainless steel. The image below shows the end of the stamped steel grates. You will notice they are hollow. The solid rod grates are just that, solid round stainless steel rods. Much, Much, Much better and will last much, much, much longer.
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