As an avid F18 sailor and and the Aust F18 media guy, I try to minimise reference to manufacturers, preferring to report on the accomplishment of the sailors. The heading above (not mine) was accurate. Ashby did dominate after the first day. Your's truly was ahead after the first three races, but Ashby's string of bullets put paid to my brief taste of free beer at the winner's tent!
The successful promotion of F18 needs unbiased promotion and emphasis on sailor skill not equipment. The designs are all pretty close in performance. The sailors make the difference.