Hello Therese,
Re: "It's kind of sad, though. Here is some new research that everyone should be jumping on, but the very small FB Sidereal community remains in its self imposed ivory tower apart from what is happening in the 21st century."
Well, if they're basing everything on mummy tomb inscriptions, it does show perhaps an unhealthy adherence to the past. lol The part I don't understand, is that most astrologers seem to be progressive and generally "on the hunt" for methods that work. Anyone demonstrating "outside" ideas, should at least be heard. Doesn't mean any particular astrologer has to adopt any techniques or change anything, but at least being open to the evidence is what is being asked for... Having found Age Harmonics an incredibly reliable technique (
when the correct birthtime is used), I had a feeling I was in for a bumpy ride on that forum, when Jim mentioned that his survey of Age Harmonics was relatively lackluster. (paraphrasing) My experience studying thousands of events has been that they are anything
but lackluster.
I don't mean anecdotal evidence like, my Grandfather (adoptive Father) dies as a Saturn-MC Age Harmonic exactly forms (true); I mean for every event analyzed, finding extremely appropriate astrological indicators over and over and over again. If it's so blatantly obvious, why can some not see? [None are so blind as those who
choose not to see.]
Re: "We know from modern academic research that there are no Mesopotamian documents that list longitudes for Aldebaran and Antares..."
These philosophical or even actual underpinnings (to me!) are of the 2nd priority. First priority is always "does it work and how well?" ie. how EXACT is it, and how RELIABLE is it? Everything else is everything ELSE.

[I do find it interesting, but it doesn't enter into the evaluation, which is relatively mutually exclusive to its history... I know you know what I mean...]
Re: "The valuable FB solar and lunar return techniques will remain in use, but if I had to make a prediction, 20 years from now the FB ayanamsa will be only a blip in the history books as it has never been really tested with modern techniques."
That's hard to say, as the allegiance to the group-think is extremely strong. Certainly, if the Krishnamurti ayanamsa out-performed Fagan-Bradly, using the techniques that the FB school are using, then it would be just idiocy to hold onto the less-accurate model out of some loyalty.
Re; "It gives very poor results in the navamsa chart and other Indian divisional charts. It seems it's mainly the so-called 'Vedic' community that will carry on work in the sidereal zodiac."
I accept that as potentially true, since I have very little experience with vedic methodology. I studied it briefly, but just never really gelled with it. These ingress methods appear to be giving valid charts, so definitely it appears this technique (already) should be added as a potential technique for all people studying mundane astrology, even if from the Western/tropical camp.
Re: "How about volcanic eruptions? Do we have some ingress charts for those? These days we are seeing massive flooding in different parts of the globe. So water disasters are another fertile research area. The problem is that often flooding covers large areas, so what do we do about choosing an ingress location?"
For a volcano, there's usually a specific starting point (ie. well-defined in time, due to seismic measurement) and often the exact latitude and longitude are given, making them (also) ideal for testing these techniques.
I guess, now I'm taking requests... lol (but happily so, only pretend complaining)
I'm glad you found/find some value in this "study." To me, it's a blind experiment since I'm randomly grabbing events and presenting them. ie. relatively scientific
I do realize that the small numer (18 currently) is such a small sample that it would be considered anecdotal, however; anecdotal as it may be, Krishnamurti
is working relatively reliably and FB appears to be working at chance or worse and that is
concerning.