Hi; the surveyor said the 20 year old halyard needs replacing; so it's a standard 3/16" ss tied to 3/8" line. I've heard 'everyone' replaces these with 100% line; getting ride of the ss. Sounds fine to me, but, will this require the replacement of the sheaves? It looks like the ss goes to the top, then in and down inside the mast; such that the rope section does not roll on the sheaves. I suspect the sheaves may need replacing as well due to wear. Any experiences or info are wecome and certainly appreciated.