I apologize if this question has already been asked before, but I couldn't find it. My question is: does the "free" version of copyscape in which you input your URL catch as much as the premium version does? I do a lot of rewriting, and I don't want to get burned by just using the free version. In anyone's experience, have there been any times where the paid version of copyscape picks up something that the free one doesn't? Thanks.