WP Robot and WP Content Spinner Plugin passes Copyscape

I have just created my first autoblog with WP Robot and I am using the plugin WP Content Spinner. The scrapes are from Yahoo Answers. The content is obviously going to fail a cut and paste plagiarism test, but when I run the url's through Copyscape, they come up clean, so it would seem the plugin is doing it's job. Can I rely on this to dodge googles dup content or do I really need to re-write? I posted a thread about the plugin and had a response saying it does not work, which I appreciated, but now I wonder.

Does anyone have any solid info about this or am I going to have to start re-writing?

Much appreciated as always folks

i use wp unique, it spin all content, find wid google dork for synonyms.txt