Full disclosure: This was 100% my fault. I ended up with a couple of duplicate custom user fields after the import was complete (also my fault), and went back to delete the dupes in the middle of the night, while I was sleep-deprived, etc. Deleted the wrong fields. BUT... that data is still in the old DB. And I've got the xf import log saved in a table. I just need a query to fetch the old fields, match them up with the new userids, and plug them in to the right lines in the new db. Has anybody written such a query, or have recommendations on where to start figuring it out?