официальная версия от NP
http://support.neilpryde.com/issue_view.asp?ID=18
Question:
How long can a fully downhauled V8 be stored?�
Solution:
We don't recommend leaving it rigged over night. But if you really want to you can leave it rigged for about week at the time. But you should know that this will influence the life of your sail. It puts a lot of strain on all the seems and it will slowly stretch out the sail. Also for the mast it is not ideal, it will get a little bent over time and might feel a little less responsive.
This is the reason why we recommend to de-rig at least over night.�