Fixing to polish my first granite counter top. It is black with multi-colored specks and has no scratches. Just kind of dull on some areas, about 5 years old and never worked on before. Owner just wants it to shine again. Last polished granite at the Stone & Tile School last July and would appreciate a refresher as to the proceedure. Have the basics down but have a few butterflies I'd appreciate you all getting rid of. I have all the hand tools and the dark granite polishing powders, steel wool, etc. Just don't quite remember how much to use. Have a totol of 70 sq ft of counter top. Thanks in advance for all the help.