Bob:

I don't see a twing on the port side. You don't run them? Would get the twing on as soon as the pole was made have mitigated the kite getting away?

joe

Correct, no twings in that video. Those are the conditions where they would be most useful, reaching course for the sheet angle and heavy air to choke off the kite.

It doesn't really affect the sheet much except at the hottest of kite angles. Anywhere deeper than 120 apparent and the kite is far enough to windward, and the yacht wide enough that the sheet goes strait from the stern block to the clew.