If your mast hook still has the movable top of the hook, I highly reccomend that you drill out the rivit and remove it. This is not likely. I also reccomend one of the Aussie halyard hooks that has a twist shackle welded on to the ring. This site probably has them. When you tie the shackle to the halyard, make sure the knot is in the right place so that it stops at the top block in the mast leaving the ring centered at the same level as the hook. Raise the sail until it stops and rotate the hook into the ring using the mast rotation limiter. Release halyard tension while rotated and pull down on sail to insure that it is hooked. McLube on the luff of the sail makes raising a piece of cake. To lower, reverse the process. Raise the sail to the stop, downhaul released of course, rotate the hook out of the ring and release the halyard with the mast still rotated. If you need to sail before you can get all this set up, I reccomend turning the boat over on the beach to hook and unhook the halyard ring, it's really not that difficult if your not alone...cheers, and good luck...Mal