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Old 11th June 2011, 06:21 PM   #29
Join Date: Sep 2006
Posts: 459

The Grand Prix Speed is designed to be used only with RDM masts .

The GPS is designed for the Hot Rod RDM mast, but is SDM compatible, supplied with an extra set of cambers.

Both above comments taken from Hot Sails site. Same sail,same year,one in main web part other in PDF rigging guide !!!

Not very helpful !!!
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