switch to a 17T cog.
i ride with that and its beautiful
17 skid patches ftw^^

EDIT: oh yeah and learning how to skid is kinda hard at first, especially if youre new to riding.
i practiced a lot in a parking garage that was close to my house. the smooth pavement makes it a lot easier
also, grass is fun too, but it's easier to eat **** on, unless it's pretty flat
that's my 2 cents
good luck
have fun