That's pretty much what I think was going on. I couldn't figure out on the data manager where the prior import was, so I couldn't figure out how to delete it. So I guess I'm paving over it--someplace, somewhere. I'm still not sure exactly where. It looks like it was taking ~8 hours per 1 month, 1 minute bars for NYSE to import based on that.
I glossed through their site and I'm not sure what exactly they're even offering. How does one even interact with their stuff?
I would suggest to simply remove entire data series from OQ DB and import again. One month of 1min bars should take minutes if not seconds to import...