I am using the best spinner to spin my articles. I normally rewrite each paragraph 2 times so that i have 3 different versions of each paragraph. Doing this, usually i get at least 95% of uniqueness. My question is, since 95% is a pretty good number, is it worth all the time ti spin each word? Or just spinning the paragraph is good enough?
Just one more question, an article with this percentage of uniqueness can be submitted 20-30 times to article directories without being considered duplicated content?