>Unfortunately, this has to be done freshly each time. However, it's an admin-only task, and only needs to be run every few weeks on a bunch of tables. Once I get it operational, an admin can just start it up and do something else for an hour or so...

Gotcha. In that case it would seem to be the reasonable way to go since apparently somewhat extreme measures would have to be taken to speed it up appreciably ... and what better way to "... continue serving our govt. inaction?" :-) Just kidding. :-)