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Old 10-06-2010, 02:27 PM   #6
RI Swamp Yankee
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I believe jmen24 is correct in that it reduces the sag. I think it also reduces any lateral (side to side) movement near the center of the A. The length and narrowness of the A makes it more like an H. The tension of the cable could reduce side to side the bending of the A legs ..... maybe.
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