icewall,
Given Scott's description of Storm's procedure, I still have to say that I believe it's 1500 grit CAMI polished, because the grey pad is 800 grit CAMI (roughly P1600 grit FEPA) and the Step2 compound is an aggressive abrasive compound that will further abrade the 800 grit CAMI to a much finer grit level while adding the final polish.
Also in my experience other manufacturers polsihed balls, specifically the old Columbia300 and the new 900Global/AMF are finished to 2000 grit polish. Their pearls, like Storm's/RG's, attain very similar lengths out of the box, in my experience (which, of course, is not the final say).
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"None are so blind as those who will not see."