One advantage of the newer spectra/dyneema cored lines for halyards is that they give you a reserve of additional strength without going up in line diameter or weight. This allows for some wear that a standard double braid may not be able to withstand without requiring replacement. 3/8" double braid like StaSet has a BL of 4400 lbs, where a 3/8" spectra core line like that from Cajun Trading has a BL of 9800 lbs. or over twice that of the StaSet, and most of the strength is in the core of the line.
Use something that is strong enough and easy on the hands.
All the high tech lines like Dyneema and Spectra are fantastic materials but they have a place - on high performance boats. If you are racing and worry about your boat speed in tenths of a knot, then they're probably justifiable.
Really, think about all the applications and whether you will notice a difference using them on your boat and weigh that up against the cost.
I know that my boat will not be equipped with these lines. SD's table from Cajun look like the right stuff for me.
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You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.
—Cpt. Mal Reynolds, Serenity (edited)
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