Removing the sail is the easy bit, getting it back in place at a later date is much more demanding. Make sure you photograph every connection to the sail before it is disconnected so that when you eventually put it back, you don't have to rely on remembering how each part fitted. Instead you will have a set of photographs to remind you exactly how it was fitted before.
In particular, if you have in mast reefing, it is critical when refitting the main sail, that it is hoisted as high as it will go to ensure that there is no slack or bagginess in the sail where it fits within the mast. If the connection of the sail topping lift to the head of the sail is by a shackle, don't change that shackle except for one of an identical shape and size. If the connection is simply by tying the topping lift to the head of the sail, ensure that the knot you use is no larger in overall size than the one that was there before, Any slack or bagginess in the sail will result in it tending to jam up as it is furled, not what you want in deteriorating weather and increasing wind speeds. It can also result in a furled sail becoming extremely difficult to unfurl without risk of damage to the sail. Good luck.
