That’s really weird. I have tested WordAI and Spin Rewriter with Copyscape and the results were always 80%+ uniquness, even 90%+. I don’t know how u spun the content to achieve such low results, but this is definitely way too bad. As for the block spinning, I have to be honest, this is the first time I’m hearing of it and I will have to check it out when I have a bit of time, but generally, yes, in the best case scenario, you would manually touch your Tier 1 content to make it 100% human readable and as unique as possible. For lower tiers, you can do pretty much anything, but again, the better quality of content, the better results you will have. That’s in my opinion and experience.
It is a simple process where the user will simply copy and paste their article into the text box. The spinner will do the rest as it produces an entirely new article on the spot. Users are also able to include words that should be ignored by the spinner. This is in case you have specific keywords that should not be taken out. This is a fantastic tool for those who are on the go and need quality content right away. Instead of spending hours on producing content and/or spending money outsourcing to writers, it is easier to employ this spinner instead.
Always start with quality content: Quality content means is a unique content on a very specific topic. You have to create unique valuable content which will be more informative for human readers. It’s impossible for a program to produce content that is engaging the users because it just replaces few words without any writing skill. So, It’s a big risk for you if you start with low-quality content and the more risk if you are going to use the alternate version of the articles.