I spoke with Bill Stearns and Chris Santerre separately by phone, and what we came up with is to put the 6dos data into a new, separate list, reflecting that it's a larger data source with a different philosophy behind it. It tends to be more inclusive than some of the other lists, meaning it may have greater potential for false positives. And at about 80,000 entries, it's clearly a larger list then our others, which currently max out at about 20,000 for ob and ws (natively). The 80,000 records in 6dos probably have *not* been hand-checked.
Chris expressed that he's becoming more comfortable using 6dos since the author has been adding some more cross-checking of the data, but we all agreed the data may be better in a separate list. Maybe I'll call it 6d or 6dos.surbl.org.
By the way Bill's server is being worked on right now, so we don't have the ability to update ws to disable the 6dos inclusion. Chris will do that when he's able to next.
Until then I've reverted ws.surbl.org to an older version of the list that I had from three days ago. That should be reasonably close to the pre-6dos version that was being served before.
Jeff C.