You should add a block at the bow as well
The tack of the asymmetrical spinnaker should not be shackled to the pendant at/near the base of the forestay like a conventional headsail. Instead, shackle a line to the tack of the sail, run it through a block shackled to the same wire pendant as the headsail tack, then back to a cleat or rope clutch near the cockpit. Since there is no pole and the head of the sail is fixed, the tack line allows you to trim the luff of the sail by adjusting the height of the tack above the deck.Some parrel beads would be a good investment too. They're wooden balls on a line attached to the tack of the sail and wrapped once around the forestay. As the tack line is eased and the tack rises, the parrel beads keep it from blowing off to leeward. This prevents the luff of the sail from sagging too much. Very handy.If you have no spinnaker sleeve, you can douse the sail easily by letting the tack line run out through the block. The sail will still be attached by the head and clew, so now the sail looks like a big flag. Head up slightly so the sail doesn't foul the forestay. You can then douse it from the cockpit by pulling in the sheet while easing the halyard. The sail also is less likely to fall into the water. Happy sailing.PeterH23 "Raven"