If the gimblet wire in question has been in that position for a year, in all probability it is rotten at the point where it runs through the hook at the top of the stack, and it would not take much weight to loosen it. So bear in mind, no matter how light or heavy in weight you may be, do not climb up on the gimblet wire.
The following is a more simple and far more safe way of getting to the top:
First of all, get a board from six to nine feet in length and two to three inches in depth. Take one end of the gimblet wire and tie it to the end of your board, and fasten the other end of the wire to the board about three feet from the end. Take your stack hook—a hook of good ⅝-inch steel. This hook should be about fourteen inches long, the hook being six inches long; a five-inch opening with an eye opening of about two inches, so that you can hook your block and tackle to it. Attach your stack hook to the board on the side opposite to where your gimblet wire is fastened. Be sure the hook is turned towards the stack.
Ready to Pull the Rigging Up
The Boatswain Chair
When this is done, pull on the wire; that will draw up your riggings, reaving your block and falls out to the size of the stack, so as to enable you to keep them from twisting with the gimblet wire. Now, then, should this board be weak and break while you have your riggings near the top, to prevent them from falling down and one end of the gimblet wire from running to the top, tie a heavy piece of cord to the end of the gimblet wire, running it to the other end of the wire, then fasten to your blocks.