Very nice video, as always.
I used to have problems with jams in my furler. In the Spring, I replaced the line with New England Ropes Regatta Single Braid in 3/8" and have had no issues since. The single braid lays flatter than the double braid it replaced. Once, the line got caught on a bow cleat, so now I always make sure to take the slack out of the furling line after letting the sail out.