On August 12th, the same day as int'l panda roll out two of my websites have what looks like -50 penalties. They still show for a domain search, and one even has the new sitelinks. All pages are still in the index and show when searching for their url. One site linked to the other but that was the only connection. The two sites are on the same subject. They share some similar backlinks but nothing too extreme or out of the ordinary. They show on page 5-6 for all of the terms they used to rank for.
One site is registered in WMT the other is not. Both use google analytics but on different accounts. Both sites have paid links but nothing too spammy and not more than any other site in this niche. Haven't touched the sites in the prior two months besides ~5 weekly news articles.
Is a reconsideration request necessary? Should I wait it out? Should I change anything? Is this algorithmic or manual? Any insight would be much appreciated.