I just build my first, small PBN and started to link to a clients (local) site. Yesterday I linked out twice from a 500 words article from a site, which used to be the same kind of business in the same city. Its very small linking profile is clean and natural (links from local citations, related sites, the most powerful links are image links from the web design company which created this site). THe CF is 21 and TF 25, also the site is indexed. I linked out in the beginning in the article about my clients services with the anchor "KW1 in city" and in the end "KW2". Today I noticed a drop from #4 to #8 for "KW1 city". I have been ranking this site for a while and I know that this is almost certainly not a google dance, because 1.) I very rarely saw a site dancing for this local KWs and 2.) when my clients site dropped, it always stayed there until I build some new links to it. Im also sure that this must be the cause from these links because I always notice a ranking update for the site within 12-48 hours, and the dropped happened within this timeline. Also, I am not building other links or whatsoever to the site. I am very surprised about the drop because imo this is the most natural link you can get for a local business. Also, I highly doubt that the linking site has ever been penalized because it has < 20 BL`s and all of them are natural. THe only reasons why g00gle could devalue this site is because 1.) it was dropped for months and 2.) the design and site structure are different from the original site. Regarding 1): The people in the country I am ranking this site seem not to know or care about PBNs, so its not uncommon to find a good site which has been dropped for a long time. So what do you think? I remember reading a thread about ranking dropping after using a PBN but cannot find it anymore. Also, what would be the best way to test out individually if a PBN site is good for linking to the MS or not?