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.
I first met Aaron in Washington at Yanik Silver’s event & he was extremely humble about his seven figure tool product that had been quietly making affiliates a lot of recurring income. Over a webinar I grilled him on the pitfalls of spinning, only for him to reveal his high traffic guitar site built using content from Spin rewriter which was clearly useful to its reader. As he demo’d the tool I could see it was by far the most powerful tool out there. It is a perfect product for an I.M or SEO list.