I might add -
I can't speak for sail brands other than Maui Sails, but their 11.0, 9.2 and 8.4 TR-3's can be down hauled without a special tool. I am an old guy with back issues, but can still down haul them. I have a downhaul crank, but haven't used it since I got the TR-3's. I hope the TR-4's are the same.
The TR-1's required a tool.