One of our main money sites had a bunch of page 1 rankings for a few keywords for about 1.5 months and has been indexed for about 6 months. It recently was hit with a Google sandbox and dropped 200-300 rankings for just about every keyword. We were wondering if it would be advisable to 301 redirect our sandboxed domain to a aged domain that has been indexed for awhile and then start our backlink efforts on that aged domain. Does anyone have any experience with this? Thanks