Start by furling as tightly as possible then streach the out haul loosen and repeat 

On Oct 29, 2020, at 2:00 PM, Ian Park <parkianj@...> wrote:

Do as Bill says and use the winch handle, but on my previous boat (not AMEL) the furling main jammed a few times - usually when rolled too loosely. I found it helped to pull downwards hard on the leach of the sail. You may need to release or slacken the short rope on the clew first. It may help too if someone can reach up and push the sail/foil inwards (away from the mast slot). Good luck.