Alan sent me some photos to show how the lines are lead aft under the windscreen. In his email he says:
As you can see the lines lead to the cockpit through 4 holes drilled beneath the cockpit window . We’ve never had water pass through from either rain or spray from the bow , probably the rope would soak any little water anyway . The lines from left to right are Blue, ( mainsail out haul) Yellow Blue Fleck ( boom vang) Blue Fleck ( main reeling/Furling) Red ( Boom Topping Lift ) hope this helps