I implemented this method quite a while back.
I had a new site targeting a 1300 exact search keyword and it had around 10 articles on it. I bought a 10 year old domain, added a 1,000 word article and bought a 10,000 comment blast from BST section.
Once the article was indexed, I added the redirect. Then I started building links to my main site. Blog posts, blog comments, wiki blasts, social bookmarks, forum profiles and made a randomly interlinked web 2.0 pyramid as well. Got all these links blasted with scrapebox. These links were spread over inner pages as well.
Result: The highest my site ranked was around 60...since then it is not in top 1,000. I am still building links and adding content.
The site which I had redirected has gradually got deindexed and doing a google search for site:domain.com gives just one result now which is "domain.com/wp-admin"
Jumping through all these hoops just got my site sandboxed.