Copyright 2002, Roadracing World Publishing, Inc. A note from Jeff Harder of Harder Racing Development (HRD) of Princeton, Texas: “This is a big Thank You for being the guiding force in the use of Airfence. I have had two incidents which I believe could have been very bad if the Airfence would have not been there. “My son Jeffrey, at Texas World, and my Pro rider Cory West at Daytona coming onto the west banking in practice. “Keep up the good work.” (Airfence is a trademark of Airfence Safety Systems of Australia.)