We have a 2-part halyard so when the sail is up and on the furler
, the halyard goes through a spinlock jammer on the mast under the exit slot, then through the mast base turning block back to the cockpit
with sufficient length to wrap around a cabin
top winch to make tension adjustments. The halyard tail is removed and stored in a cockpit
locker and is only needed to lower the sail. Certainly declutters and removes a lot of rope
from the cockpit halyard bags. I figure if something happens and we need to lower the sail quickly I can always let it run through and re mouse later on.
The part of the halyard that takes the load is raw dyneema with a cover where it goes through the jammer and back to the cockpit winch. The tail is 8mm double braid polyester, but with a small dyneema tail & loop to join into the loop of the other part.
No downside that I can see as you never handle the exposed dyneema core
- maybe need to watch the UV exposure for that part that is exposed from the top swivel and the halyard entry point.