Eye,
It is a 50/50 crap shoot if you have a swivel. During it's adventure to the sea floor and back it is free to rotate in any position it wants. So it can come up clocked in any orientation. All chain, no swivel and no problem.
If you look at Peter's swivel it can be seen that the bolt remains in a position that twisting or bending of the other two parts will result in tension only on the bolt. The ball swivel will have a very high bending load on the ball shank if pulled at right angles or thereabouts. I think the ball swivel only moves about 45 degrees. When the rode swings more than that the bending load on the ball shank probably is very high.
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Eric
North Western Washington State USA
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