Praise going to both eBid and byKimbo: It was breathtakingly easy to update my existing H2S January badges to the February one. Not all my 252 listings had the badge but I just selected the whole lot of 252 to put into my editing bucket and PRESTO in the promised ten minutes the January badges changed to February.
One little caution for those who might be a little inexperienced like me: use BULK EDIT, not bulk upload. DUH!
This was a very positive experience. THANK YOU!