ive been chasing a local keyword over 1,5 year all i got this flutuative serp position on page 1 #5-#10 pos, so i decide to build my own pbn and put 1 link drip 3 days on every pbn homepage, and sudenly reach pos #1, after 4 days drop to pos #4 and today drop to page 2. all pbn create on different ip, regis, email, theme, and so on.... pbn domain PR 3 and 10 post is index. pa/da around 10/12 keyword 2k ms often update with news. any suggestion guys? should i remove these link or continue build pbn? my pbn suck? should i build link to my pbn to strong it up? social media maybe?