promis - 3:21 pm on Jul 18, 2005 (gmt 0)

Maybe someone can throw some light on this:
I use "CheckSpelling on" in my root .htaccess. I also use 301 permanent redirects to direct to the correct urls, misspelled urls from sites linking to my pages using wrong url strings (there are quite a few of these. This is mainly to tell Googlebot which is the correct url. I was paying for a lot of bandwith with Googlebot's spidering of these wtong urls.
With the latest update my site has gone from page 1 SERPS to pages 3 and 4 and it appears it has been penalized. Since the only significant changes I did during the last few months were the above couple of .htaccess modules I wonder if they have anything to do with it. Is it possible that Google doesn't like this sort of thing? By the way, all my pages are indexed but the number of pages shown as indexed by searching "site:mysite.com" appears to be triple the actual number of my pages". My site never had more pages than at present so it's not a matterof old pages indexed.
Would mostly appreciate any insight on this.