Best Blackhat Forum

Hello. I have a question. I made some article with WAC, and use heavy spin. Before two weeks every article with heavy spin had between 95-100% unique. This days, have 15%. I make articles same way as before two weeks.
I check copyscape on smallseotools plagiarism-checker.

Second problem is that smallseotools plagiarism-checker show less unique than other plagium sites. I check all plagium sites, and all they told me that article is unique, but small seo tools told me 20% of uniques for example.

Anyone know more about this?

Instead of use spin articles if you every time post new unique, fresh and interesting articles then it would be more beneficial source for you.

smallseotools is not accurate, i spun an article to over 85% unique, senuke showed it as 50%

To be absolutely sure you get 100 per cent original articles, you can spin the articles
then drop them into Spin-Chimp Rewriter.