1) I agree with Alan, if you have a wire as halyard at present - replace it by Dyneema
(Spectra is usually more sensitive to UV-light)
2) Get rid of all shackles up there and use a good old knot
(but donīt forget that some knots reduce the strength of lines significantly). Shackles usually cause wear problems on the swivel.
3) Sounds to me like you have a Profurl Classic furler
(very good system). In this case the prefeeder is very helpfull, but also easy to loose. Make sure you secure it with a small line. Take it off before furling
the sail as it might damage the sail. And donīt leave it on the furler in the harbour as it is quiet expensive and very ease to steal.