I can tell you from experience that even as little as a 20% spin along with adding or taking away a few sentences or short paragraphs is enough for google search. There are some articles I've done that have multiple listings across the first 5 or 10 search pages.
If you're doing a 50% or higher spin (what I tend to aim for) then you're good.
AMR does kick ass by the way. Great way to spend some money if you're looking to invest in seo tools.
If you're doing a 50% or higher spin (what I tend to aim for) then you're good.
AMR does kick ass by the way. Great way to spend some money if you're looking to invest in seo tools.