Hello. I got a client website to make the seo, the domain have 10+ years and PR3. I've translated the wikipedia page of the niche, configurated the keyword density to 3$-5% and started make links with senuke and 2nd tier links with scrapebox. In 1 week the site just got 1st position for 4-5 keywords but at the 2nd week the site lost the PR3 to PR n/a and also lost positions. I know about google dancing but when dancing the site also lost the PR? And the page I've created the optimized with translated text get deindexed when all other pages are indexed. How long to know if its a penalty or just dancing? Thanks very much.