Far as I can tell Moody is correct ...
If you use a pennant to get that upper furling swivel as close to the mast halyard sheave as possible where it won't foul when it turns ... there is never a problem then because then the halyard is nearly perpendicular to the forestay.I've had that twist problem on a C&C 36 and a J30 ... both times when the backstay was really loose. Once the backstay was tightened the problem went away. I won't mention the fact that bendy masts and roller furlings are sort of a no no.Another time all it took was about a three inch lashing at the tack to raise the sail on the foil. Short sails don't work well on most furlers. I even saw someone use a pennant at the top of the sail to get that upper furling swivel closer to the halyard sheave... that worked fine too.vic "seven"
If you use a pennant to get that upper furling swivel as close to the mast halyard sheave as possible where it won't foul when it turns ... there is never a problem then because then the halyard is nearly perpendicular to the forestay.I've had that twist problem on a C&C 36 and a J30 ... both times when the backstay was really loose. Once the backstay was tightened the problem went away. I won't mention the fact that bendy masts and roller furlings are sort of a no no.Another time all it took was about a three inch lashing at the tack to raise the sail on the foil. Short sails don't work well on most furlers. I even saw someone use a pennant at the top of the sail to get that upper furling swivel closer to the halyard sheave... that worked fine too.vic "seven"