I disagree...
Justin: On the O'Day 22, the spreaders are attached to the mast, with a SS rod through the mast. Both ends of the rod are threaded, and screwed into aluminum plugs in the ends of the spreaders. This mounting is intended to keep the spreaders at a 90 degree angle to the mast... which does make for slightly unequal angles to the shrouds, but that is what was intended by the design. And trying to angle them to bisect the shroud angle, as you suggest, would necessate bending this rod, which would not be good. As for the outer ends of the spreaders... on the O22 (the early ones, at least) there is a screw blocking the exit of the shroud from it's notch, so no wiring is necessary. Rich.