Now I think the answer is yes because when I 301 my site the traffic stayed the same but changing the date on my blogs from site.com/articlename/date to site.com/date/articlename gave Google errors. A few weeks back my search and media dropped almost 75%. Now I'm guessing it was the errors because I haven't built links to the site for ages and it never moved during all the updates (for years). My question is if I fix these errors will my site come back up and if so how long would you think it will take? (also help on getting it fixed would be great, site has about 2k+ errors now).