If you bought the push up sail with the boat the ring should be set just right to clip on, I wouldn't change it to halyard. If the last 5 inches are hard perhaps spray the bolt rope with something non staining like Lanox or Inox to let it slide a bit better, then just push it up until it locks on. To get it down, push the sail up a bit, pull your mast rotator whichever way you need to rotate it away from the ring and down she comes. It may take some tuning of the bungee if its not locking on easily perhaps post a pic of your system.