The downhaul that has been approved requires a special part to connect to the mast base. This part has not been built yet. There is no part number yet. The 2005 Catalog comes out in early April and should have this in it.
The rule requires that the lower block and cleat not swivel. The downhaul will not be adjustable from the wire or the weather side even. The line will feed directly aft in line with the mast luff track.
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Hobie Cat USA