Greetings Andrew,
I have found some more information on the age of bits that might be of interest to you. I don't plan to put it on the Forum as that would go off-tangent (though it is being put into the article for the site), but I can send it along to you if you are interested (contact me at philoalexandros@hotmail.com if you would like me to send it to you). I am currently trying to confirm the info, so your input could be helpful.
Regards,
Sikander
Andrew... more on bits
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