I have one multiniche site and i was building quality links with gsa ser every day for a week and it was climbing slowly in serps all posts then i decided to add to each inner page around 30 web2.0 and i was build links to those web2.0 via gsa ser. Then after 2-3 days all inner pages dropped to N/A and didnt came back for 2 weeks i am still waiting and hoping for them to came back or do a dance but nothing. I was thinking maybe it was waiting period. My exact keyword anchor for all posts is not more than 6%. Also there is one niche on same site that i didnt built web2.0 to it only gsa ser links and it didnt acted like that it was slowly climbing and now it reached top 10 with support from several hq SAPE links.