Have you all observed a correlation between filter = 0 and specific search terms? One of my sites is optimized for 4 different keyword phrases on the homepage. For the first phrase, I have been filtered for about 10 results, for phrase 2, the filter doesn’t impact me at all and for phrase 3, the difference is evident in more than 100 places. I don’t think it has got anything to do with the competitiveness of a search term. It may have to do with backlinks. I am not sure about it. Any insight/inputs would be greatly appreciated.