The bowling stance is the foundation to getting started to a successful bowling approach. Taking the time to focus on a consistent setup will develop consistency throughout your approach.
To get setup, choose a starting spot on the approach and set the sliding shoe slightly in front of the ball side shoe. Distribute most of your weight on the non-starting foot (non-ball side for a four step approach, ball side for a five step approach). Distributing your weight on the non-starting foot will ensure you have a consistant start each time.
For more on the bowling stance go to Bowling Stance.