Planet13 - 2:16 pm on Jun 13, 2012 (gmt 0)
The way it is working for us is panda hits and removes the 'duff' pages from the serps.
Is your site by chance an eCommerce site?
I am trying to figure out what the "duff" pages of my ecommerce site are. Possibly I have to many similar products with not enough difference in the text?