I have stored my boat outside, Illinois winters for three years now. This winter will be the fourth season storing it outdoors with the mast up. I plan to run a messenger line through the mast and take the main halyard out clean it and inspect it and store it indoors. I will leave the jib halyard on because it is used to support the canvas cover I use. I plan to take the topping lift off too. I don't know what line to use for the messenger line or what type knot to use to attach the halyard to the messenger line (could I get it caught in the mast?). I worry about the knot coming undone too. Please let me know how you guys do this. Hopefully your explanations will be simple enough that I will feel confident doing this. Thanks in advance for your patience.