For those who like shiny brass, i've been using about 2 tablespoons of turtle wax "Color Back" with my corn media. It really makes that brass shine.. Here is what the stuff looks like. You can find it at Auto Zone $8 for 16oz..
http://ecx.images-amazon.com/images/I/41VS2DRBFEL._SL500_AA300_.jpg
http://ecx.images-amazon.com/images/I/41VS2DRBFEL._SL500_AA300_.jpg