tedster - 3:40 am on Dec 12, 2010 (gmt 0)
As I understand the above reports, this is the pattern:
1. A URL is ranked well for an exact phrase in the title element
2. That ranking drops away dramatically
3. A new word or two is inserted to break up the exact phrase match
4. Rankings now return for that phrase, even though the exact match is now gone
Have I got it right?