We have recommended these impellers for years and use them in every recreational, freestyle and racing ski that we build. We start out with a standard Solas Dynafly impeller and blueprint it to insure the blades are all consistant and pitched to our pre-determined specification. We then machine the hub back 3mm to 5mm depending on set up. Typical gains are 1.5mph - 2mph over a Skat-Trak impeller. Please specify if using our Super Pump Cone or Magnum Pump.
