Hi, with all this info, I can cease the request for notes. In some later work I hammered out, there were some irregularities. They became attributable to having the prefix simply not start directly at zero for some cases. The skip numbering was variant in different places here and there, but between the varying skip numbering and reducing the modulo 360000 or 270000 down to its lowest form, I found that the position numbers dicovered were bang on for CBN, and for BABN, well, I hypothesise that again , there was a section of numbers that were ommitted, where they began to start the insert range or something like that. The skip numbering for the BABN $5s is consistent at 1000 so far.
I will be cleaning up the info, and preparing a READABLE version of it all. It may have to wait till June to get in the newsletter, but I will likely be done MUCh earlier, and will probably put it on my website or something.
Anyway, thanks for all the help with the numbers everyone, and I am happy with the results of my research. Especialy with the BABN $5s and my propositions.
Merry Christmas to all!