Perf / is a great knot, and maybe we can put it on video so I can put the clip into the "knowledge" section as we start to build that up over the next few weeks.
The other line-line loop of note is the loop connector, which can be either store bought or constructed for better performance. The ones from the guys in the northwest are really well thought out because they are very important to the hybrid line systems used out there. It would be interesting to document these techniques as well.
Good luck this weekend! (wish I were going)