Airush Quad blasts through the waves like a rocket. It is fast and has quite a boost. The quad fin setup keeps it steady and allows you to control it with little effort. I could bet it is a smaller surfboard, that’s how solid and maneuverable it is. With a good kite you can do anything you want with this board. When you go upwind it runs smoothly and fast. Not much of a light wind efficiency, but you can easily push it to extreme limits.