It would help to know
what brand furler you have. It it's a SpinTec, for example, it does not use your headsail halyard at all. Rather, the head of the sail connects to a fitting on the foil directly, and that is done by going aloft. Some other types of furlers have their own internal halyards that run from the drum, inside and up the foil to a block at the top of the extrusion, and then back down where it is then connected to the head of the sail prior to hoisting the sail. Let us know what type you have, or post a picture.