401 worksheet timing out - can I override the upload?

I recently made a number of changes to the description fields in the Item table in my RMS Store Operations database. This change affected about 80,000 items.

Now when I run a 401: Request Data Upload worksheet, the worksheet times out.

I've bumped up the registry setting (HKEY_LOCAL_MACHINE\ Software\ Microsoft\ Retail Management System\ Headquarters\ Client\ Timeout\ Message) from the default 3600 to 3 times that value (10800). It still craps out after

Is there some way that I can manually "trick" the RMS Item table into thinking it has been uploaded, so I don't keep getting stuck? Do I need to do something with the LastUpdated field or the DBTimeStamp field?

I've already manually made these changes in my RMS Headquarters database, so I really don't need it to be updated.

This is what I get for doing such a large update. I should have known from experinece that if I update more than 5000 item records at a time, it will puke.