Easiest way to come up conclusions: CathInfo meetup where we get on a boat, multiple REers and FEers and both film the knots, this way we can both verify distances and see what model represents at least the reality of this measurement. Hey, I can even bring my telescope and we can do antics with that. I don't have a sun filter unfortunately. I can stomach RL experiments more than multiple hours plus long vids on either side of the debate. I'm motivated to do tests, anyone else?