The sliding rigger rowing system is not a recent invention. An early patent was filed for a similar rowing unit way back in 1905 however the German Olympic rowing challenge of 1985 saw a revival of the technology. Thorough development and testing was conducted by the German Olympic challenger team.
When it was found that the sliding rigger system was substantially faster when used on a racing shell, the Olympic governing body banned the German sliding rigger technology from being used in the 1988 Olympic challenge on the grounds of an unfair speed advantage. Sliding rigger rowing systems disappeared from the rowing scene until now, with the development of the Oar Board®.