Imo it is not possible for google to detect properly spun content, it is not worth computing power it requires. They can do this using ngrams for example, but it is uses a lot of queries. And for example article spinner I coded beats this algo, so google cant detect that the content is spun. Manual spinning is also good but it takes more than 30 minutes per article.
Very Readable Content – for this one they recommend setting the 1st input to “Very Readable” and allowing both sentence rewriting and paragraph editing (2nd and 3rd input), but disallowing automatic paragraph spinning (the 4th input). Keep in mind that this type of spinning will generate much less unique versions of your content as less synonyms will be used for the words.
The most common way for people to find products or services online is to use search engines, especially Google, Bing or Yahoo. These search engines have certain criteria for giving websites more (or less) opportunity to be returned in search results. The way to obtain dependable, long term search engine optimization is to post as much quality content to your website as possible. The more unique readable text your site contains, the more logical area search engines will have to index and thus refer people to your site. More quality content means more opportunities for your website or blog to receive traffic from major search engines.

Coming up with content can be tough for those who are new to niche blogging. So it’s not surprising that some people turn to article spinning software, in hope for a better solution. I’ve always been an advocate for creating original things, but in this WordAi review, I got curious and decided to do an experiment to see how a spun content would look like. Are there any benefits to use this type of services at all? 
There is also the option to spin capitalized words (assumed to be proper nouns) as well as leave any number of words unchanged, depending on whatever you enter into the "ignore" field, separated by commas. You also have the option to only keep the sentences that were altered a minimum percentage, as indicated by the "Keep Sentences that Changed" option.
Hello and welcome to another review from the Make Money Online Zone. Today we are looking at something that I didn’t really expect to see ever again. But here we are looking at another version of an article spinner that has been around for quite some time. Spin Rewriter from www.spinrewriter.com has just announced version 9.0 of its article creation software. Spin Rewriter 9.0 boasts lots of features that claim to make content creation easy. But is this software all its cracked up to be or should you avoid this one like the plague?
WordAI understands concepts and ideas – if you have ever spun something with WordAI, you’d know that it takes quite some time. That is because before the content spinner even starts doing its thing, it will first read the entire text in order to understand it in both a general and a specific way. That is what allows the software to create much better sentence and paragraph spins, which in turn generates much more unique versions of the content for you to use.
WordAI understands concepts and ideas – if you have ever spun something with WordAI, you’d know that it takes quite some time. That is because before the content spinner even starts doing its thing, it will first read the entire text in order to understand it in both a general and a specific way. That is what allows the software to create much better sentence and paragraph spins, which in turn generates much more unique versions of the content for you to use.
Now, remember that the above example was using the “Very Readable” setting of WordAI. Let’s see what content will be generated if we use the “Readable” setting. Just a quick note here that this time it took about 20 seconds for WordAI to finish the spin, so the setting we are playing with definitely has some effect and is not there just for marketing purposes:
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