Hi
I'm currently working on a project to correct some really bad practices from years of different SEO's.
Basically they had made around 1500 pages of delivery counties and town, only change 3 words on every page.
Now apart from duplicate content issues, this has really hammered the site with the latest round of Panda updates.
I've pulled the pages, but i'm in several frames of mind on how to best fix this.
The pages won't ever be used again, so i'm thinking a 410 code would be best, but reading another post: http://moz.com/community/q/server-redirect-query i'm not sure if i should just let them go to 404's if anyone ever finds them.
Incidentally i'm Disavowing over 1100 root domains, so extremely unlikely to find links out there.