Planet13 - 7:35 pm on Dec 17, 2012 (gmt 0)
to be clear, in my instance, I am thinking of taking a page and changing the file name only, the same as mhansen did above.
I think my situation might be different / have more potential because after that page dropped out of the google SERPs:
1) the home page started ranking instead of the "optimized" page at the exact same spot, and
2) That optimized page continued to rank for several variations of the keyword "blue widgets", such as "Albanian blue widgets" or "blue widgets construction materials", just not the keyword "blue widgets"
At this point, I don't know what I have to lose...