I am aware that if a site has been Panda penalized (I am not talking about manual penalty), it does not help to try to change of URL only.
However, when corrections have been implemented properly (thin content has been beefed-up and near duplicates have been canonicalized in my case), does it help to change of subdomain URL?
Does it accelerate the recovery process? Or should I be patient and wait until Google finds about my changes? Is there a delay before Google will reconsider one's Panda correction? If yes, what would that delay be?
After Panda 1.0 hit, I did a test by temporarily changing URLs after making some changes (together with 301 redirects) and things improved by around 300% for approximately 3 days until those pages 'inherited' any related demotions.
Only recently have we seen an improvement to our traffic on those pages by doing A/B tests to reduce bounces. We've climbed up to 75% of pre-Panda 1.0 traffic overall.