Utahsailor, so it was you who designed the Hood
Sea Furl. I had one for some years and overcame halyard wrap by attaching the spinnaker
pole topping lift
to the jib
halyard attachment point on the non-rotating part of the top swivel. Hoist the sail and the topping lift
goes up with the jib halyard then put just a little tension on the topping lift which pulls in and down on the tensioned halyard and it can never wrap around the foil. The halyard pulls up and the topping lift pulls down.
That can be done on any furler
when there is an available spinnaker
pole topping lift or similar lower halyard. Doing that the topping lift goes up from its own turning block but as there is not much tension it simply bears on the top of the sheeve box which is smooth.
When I change to a 3/4 size jib on my now ReefRite furler there are several feet of halyard between the top swivel and the jib halyard block in the mast
. I do the same proceedure and the halyard never wraps. In fact I often do that as a precaution even with a full length head
sail. I also have a saddle on the mast
that deflects the halyard away from the swivel and the foil.
Eventually after several years the Hood Seafurl would jam. The wire forestay had cut a short groove into the top of the Hood Foil. I sold the Hood to someone with a smaller boat and I believe now slightly shortened it's still working.
I don't have a Lagoon
unfortunately I only get to walk past some going to my boat, but that idea might be helpful.