Have been away for some day's. Thats why I reply now.
When I bought this board, one month ago, I had a long talk with Erik Beale on the telephone. He told me that he used this board on the canal. I have no reason to doubt him.
Also the german surfmagazin wrote about the 1989 Masters speedtrails in Saint maries de la Mer sailed in march, were Erik did beat Pascal Maka in a direct face-of with a maximum speed of 74,31 km/h. in this magazine the board is featured, including pics.
Erik told me that he used more than one board during this competition. Sailing the 25 he found out that the board had a verry good topspeed, but the avarage speed was not that good. The extremely gusty wind in Saint marries de la Mer made it impossible to reach record speeds over 500 meter on the 25. When entering a lull the board slowed down to much. The 27cm and the 30cm boards had similar topspeeds as the 25, but they were better in gliding thru the lulls. The 30cm board proved to be the fastest board in these conditions.
I can not show you the speed done by this board because in those day's only the top speed of a competitor at the end of the speedweek counted, and was made public. In this case that was done on the 30cm board. In the mid 90's the rules changed. From then on the 2 best speed in every heat did count.
I have competed on the canal in 1990 and in 1991 myself and I know that in the rankings only the topspeed counted and they were publiched. My personal runs were handed to me on a small printout. Even if Erik has these printouts, I don't expect him to be able to tell you wich run he did on what board.
Andrew, I hope I have answered you questions to your likings.