[quote=MN3]probably fine to use a shackle but the downside may be:
well a "jesus" shackle will probably weigh more than a ring and i know i couldn't get the shackle on my mast tang through my bridal eyes
a shackle can come un-done with enough bouncing and movement (i have had side stays with shackles come undone if they weren't secured with a plier or had a safety wire attached through a hole in the pin)
a shackle will deform with enough force (so will a ring)
and a shackle can rotate around (if the rigging is a little loose and the main is released) and might cause one bridal to be different to the others[/quote]
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