It is a general and prety much irrelevant rading they use to describe the overall quality and feel of the board. What you really want to pay attention to are the other stats bars that tell you what the board excells at and is designed for. Also pay attention to the cores they use. Park Fly cores for example use more flexible cores in certain areas and thicker/less flexible cored in others to give the board good pop and also buttery flex. The powder fly core uses lighter wood in the front and beefier in the back to give you flot. The Fly, superfly cores are made to all mountain specs. The higher level they go the stronger and lighter the material becomes. Understanding the core of the board your looking at is the big key to figuring out what you want. This holds true to any board.