Chev #2, if we could get some amperes X years figures from Spec maybe we could guess. I am quite surprised by what I find in this pdf (from the cathodic protection site I posted the other day) And I have to admit I haven't read very much of the info there yet. http://www.stoprust.com/pdf/8/RetroBuoy_Jr_TB01.pdf
Chev, A possible answer to those anodes, is we could be fabricating them for another company on a wholesale basis.
I think we will find out more about them through a PR eventually, unless they are part of the SAM project. If that is the case, we we will still learn more about their use.