O.K. I stared at the pic at Murrays for a while longer and checked the official German Hobie sites assembly charts for the euro Hobie 16...
Now it makes more sense! The purchase runs parallel to the forestay not along the mast like the old 2:1 hmmm.... now the 66% of reduction in load on the mast base makes more sense.
The Euro Hobie 16 seems to have a clip or a fairlead in the front of the mast. They also have the jib halyard cleat in the front of the mast.

Patrick