H23 Spinnaker
My H23 has a spinnaker which I believe the PO set up and I modified. He atttached a stainless half-ring about 3-4 feet up the mast to mount the spinnaker pole and attached a padeye with a block just under the steaming light for the pole topping lift. The odd thing was, there was no spinnaker halyard, nor was there an opening in the mast above the forestay through which to thread a halyard. What I did was fashion a "crane" from a piece of bar steel (painted black). I drilled holes in the bar and used the bolts at the top of the mast to mount the crane. Those bolts are already there holding the crane to which the backstay and topping lift attach. I then hung a block off the end of the spin crane through another small hole I drilled. Since this is a fractional rig, the spin halyard doesn't need to be mounted at the top of the mast to get above the forestay, but it was an easy solution. I'm guessing the PO used the jib halyard, or simply never finished the installation he started. By the way, I have the Kenyon mast on an '86 H23. Other OEM masts were shipped with these boats.