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Swanson - 5:44 am on Mar 15, 2006 (gmt 0)
In summary all those things mentioned are the current hurdles to get in to Google - it highlights the issues that need to be looked at when addressing Google. I would say sort all 3 things to be sure, but it is hard to say which one(s) are the cause - although de-ranking on new domains with full page counts in Google would more than likely be the sandbox, and drastic reduction in page counts could be the other issues.
Good spot tedster.