Recently I made a huge mistake I think. I have two websites in the same niche. Bought about 50 articles (they should be unique, but actually they are just well spinned) here on on BHW. Then I added about 25 of them on my PBN sites. After 2-3 weeks I had great results. Okay, here is the mistake coming: I thought I can use the rest of the 25 articles for the same PBN websites for my second website in the same niche. After adding the other 25 articles with my 2nd website, I saw a big drop of rankings for my first website in that niche. Then I found that the articles are just spinned and some of the words are the same. My thought is: Because of almost the same content on the website there is a big drop in the rankings for the first website. How can I handle that problem? Should I delete both of the articles (1st and 2nd website) and just write new articles to the PBN's?