Sorry for thread grab, but I'm facing the exact same situation, so maybe my question will be interesting for the OP too. I have never liked wire halyards, as the splice seems to me a dangerous weak point. I want to change mine for rope.
What do you guys think about "Liros 12mm Dynamic Plus 'Cruising' Dyneema" for a 54 foot, 20 ton cutter
? Breaking strength is 4800 kg. The wire halyard
it would replace has a breaking strength of 2780 kg. So it seems strong enough. But the old halyards had 14mm rope at the ends -- will the 12mm be too hard to handle on the winch
? Any of you have any experience with this?
14mm rope is only available as Vectran (more or less the same thing, I think), and from Kingfisher. About double the cost of 12mm from Liros. And never seen a price
as low as the one mentioned by the OP; the Liros costs about 6.80 pounds from Jimmy Green; the Kingfisher 14mm costs 12.79, all including VAT.
The 14mm will have more windage, and the difference in cost is huge -- nearly 300 pounds or $500 difference in price just for one halyard.