The probable reason that the race has been strict one manufacture designs lately is due to the requirment by Mike Worrel for at least 10 charter boats to be made available to racers. For a builder to cover the costs and the final sale of the 10 used boats.... they insist on being the only boat. Thats why Bimare had a 2 year contract for the Worrel. Previously, Performance had one year deals for Inter 20's. Mike Worrells standard of 10 charter boats was to draw the European's over to the race... Ultimately he found that the transportation and logistics were still a huge hurdle and so he opted for the package deal.