I'm about to create an autoblog which pulls in full rss feeds from various sites. From past experience, initial organic traffic will drop once Mr Google realises its a spammy dupe content blog. So this time I am going to no-index all of the autoblogged posts and only allow indexing of original content which I will post. The autoblogged posts will act as a filler for the site and is only for humans since I need to make the site look full of information. In the end I will have 1000 pages of dupe content (no indexed) and 5 pages of original content targetting my keywords. Has anyone tried this before? Would it work? Would the site pass any manual Google review?