Ii's a must
A gib can become a huge kite in high winter winds, in no time, and a hazard to your boat and the surrounding craft. It could even knock you off your stands. The time it takes to drop a sail will save you countless sleepless nights listening to the wind. Pick a windless day, free your lines and start by raising the gib, then slowly lowering it to the deck and pleating it as you go from the bottom. It will slide out of the track as you go. Then simply fold into thirds and place it in your sail bag. Tie off the line to the furler if they go to the top they are hard to get back down!You will save years off premature wear if you store them in a warm dry location.For the in-mast you will need help, call a local sail manufacturer, Bank Sails/Haarstick etc. they have offices everywhere and they don't charge much to help and teach (about $40.00 for my 340) for a main sail here in New England. Hope this helps, stay calm, it looks a lot harder than it is.