The real difference comes out with micro mesh of 6400 to 12000. It just creates that polished glass like, sparkling, deep black look. I usually go 1200-4800, the rub the stem dry with a clean cloth and polish in some Maquire's Scratch X 2, then do micro mesh up to 12k. All sanding is done with a good amount of water, and you need to make sure to rub the stem clean after each grit and get fresh water. Don't be lazy and reuse the old water, it has tons of the lower grit stuff in it and you won't get the real effect.