I am going to have a complete set of shrouds made up for my H30. They actually look ok but have no idea how old they are . No fishhooks and only slight surface rust on the swaged fittings. I am going to replace them anyway. I will go ahead and replace all the mast tangs and through bolts also. I was just wondering, if it is recommended to replace the standing rigging cables every 10 years, what about the tangs? Are they usually swapped out when replacing the cables?