Has anyone ever done the dremel tool port and polish? I was thinking about tking a flap wheel to my head while I've got it off and giving her a good once over polish for good measure. Any thoughts? Also I'm looking for any suggestions for getting all that nasty carbon buildup off of the dome and a friend said I shouldn't do it myself because I could mess up the head? I kinda just figured some steel wool, solvent, and some elbow grease would take care of it, am I wrong or does my friend not know what he's talking about?