AI or TI? The other question is, what's actually causing the Furling Line to get snagged in the first place?
If it's because the Furler Drum has started moving up the mast, then there will be a space created between it, and the top of the Mast Bearing Plate allowing the Furling Line to get caught up in there. viewtopic.php?f=75&t=34816
This can be particularly annoying when you're just about land your boat on shore, there's a big crowd of people watching, and you can't furl your sail
. Of course this never happened to me
, but recently I did repair mine by re-gluing the Furler Drum to the Mast with epoxy.
Good luck and let us know what you find.