Hi Nandric,
I have emailed you the details about the cartridge and hope it turns out well. Do let me know.
On the issue about the similarities across brands and cartridges, I am not so certain. If you look at the patent data that I posted here on 05-30-12, you see that the differences seem to exceed styli alone. I believe that both Glanz and Astatic used Mitachi who - as the OEM - designed to distinct customer specifications and/or conditions at the time/s. And, yes I am acutely aware of Goebbles' maxim concerning the forceful repetition of an inaccuracy leading to it becoming accepted as fact. Yet my logic here relates to the noted patented distinctions, my own auditioning of the top the range models in both makes, and now to the styli distinctions that your reseach has helpfully identified. (On your question, "no" I really don't think there would be any mileage in sharing your findings on this particular matter with Raul.)
As I also suggested in my second post of 05-23-12, there are other grounds why I am not certain of the distinctions between the noted cartridges. I think I've also raised the question on 06-24-12 about distinctions regarding types of magnets and their arrangements.
Yet, as I say, these reflections are based on my noted triangulated logic and need not be wholly accurate: except that the performance distinctions are certainly profound and notable. Maybe your experimentation will prove the case to be otherwise regarding construction and so I'm hopeful that you do get hold of the cartridges and share your findings and impressions. It can only help.
As always...