SS wire rigging replacement interval

[benz]

Can anyone point to a printed source other than the WM catalog that gives guidelines for a recommended replacement interval of swaged SS wire rope? Backstory: I work on a 37-ton schooner in Newport, RI, which we are expected to "Sail the snot out of". The shrouds (3/8 1x19, if I guess correctly), are original to the boat (2004). Last season the jibstay began popping strands at the fitting aloft, which I caught during a routine inspection, and was replaced. I am agitating strongly to have all the wires of the same vintage replaced, as well as the SS bottle screws which trap water inside them. This is meeting with some resistance, even though the cost seems to me negligible compared to the consequenses of losing a mast. If there is a written source from a manufacturer or some engineering data that clearly spells out the expected life of SS wire in a heavy use environment, I might be able to sway cheapness with reason. Thanks, all.
Ben