The Pro Roller is placed parallel with the rails which allows you to rock the deck Rail-to-Rail. More challenging to learn but once mastered you can perform surf and snowboard like motions. Cross-step surf or grab a rail in a snowboard stance!
Challenge: Rocking the board rail-to-rail with out touching the ground! Cross-Step and hang five or ten!
Tip: Stagger your feet (toes and heel are touching the edge of the deck), and bend your knees.