Jeremy McGrane attended the first rocketbelt convention bringing his rocketbelt with him on display at the Niagara Aerospace Museum. It was a great looking belt. Jeremy kept on developing his belts and belt parts, and he was the main man to unveal the secrets of the KWL throttle valve. He made and sold excact 100% reliable copies to several rocketbelt builders like the GoFast rocketbelts, Gerard Martowlis, Stuart Ross, TAM/David Mayman and many others. He also sold complete working and 100% safe rocketbelts to Ian Purcell for example. And the second GoFast A modern rocketbelt can't fly without one of Jeremy's valves!