The sail is a 2013 loftsails switchy 7.8m rigging on an sdm 460 C30. I havent got enough downhaul, besides the fact its about 5cm short, the leach is loose only miminally into the first two panels.
I got exactly the same sail from 2016. It works great when it's quite loose, so you definitely want more downhaul. I would not want to rig that without a winch, not sure I could.
I have no problem downhauling our freestyle sails by hand. Even when rigged loose, freestyle sails require a lot less downhaul force, so don't take the Taty video as an example for you rigging your sail