Data Status: 
Array
(
    [record_count] => 0
    [v1_count] => 0
    [v2_count] => 0
    [v3_count] => 0
    [blah1_count] => 0
    [blah2_count] => 0
    [blah3_count] => 0
)
2011-03-09 10:30:46 - Reset 0
2011-03-09 10:30:53 - Reset 100,000
2011-03-09 10:31:00 - Reset 200,000
2011-03-09 10:31:07 - Reset 300,000
2011-03-09 10:31:14 - Reset 400,000

Data Status: 
Array
(
    [record_count] => 500000
    [v1_count] => 500000
    [v2_count] => 0
    [v3_count] => 0
    [blah1_count] => 500000
    [blah2_count] => 0
    [blah3_count] => 0
)

Reversion without snapshot
2011-03-09 10:31:40 - Completed 100,000
2011-03-09 10:31:53 - Completed 200,000
2011-03-09 10:32:05 - Completed 300,000
2011-03-09 10:32:17 - Completed 400,000
2011-03-09 10:32:31 - Completed 500,000
2011-03-09 10:32:41 - Completed 600,000
2011-03-09 10:32:48 - Completed 700,000
2011-03-09 10:32:57 - Completed 800,000
2011-03-09 10:33:07 - Completed 900,000
Bad Data
Array
(
    [$err] => ns: test.test ClusteredCursor::query ShardConnection had to change
    [code] => 9996
)

Data Status: 
Array
(
    [record_count] => 500000
    [v1_count] => 11478
    [v2_count] => 488522
    [v3_count] => 0
    [blah1_count] => 11478
    [blah2_count] => 63018
    [blah3_count] => 425504
)