Best used on a ball spinner, Pro Finish Step 1 compound gets deeper scratches and skuffs out while applying a small amount of shine to the surface. Step 1 has the highest sanding agent to polish ratio than Step 2 or 3.
Pro Finish Step 3 has the highest polish to sanding agent ratio of the compounds. It removes light scratches and brings the ball to a higher luster when used on a ball spinner.