We are improving our page-generation software, obtaining every time better sites and always good positioning results.
We recently made a project for our Spanish SEO site, www.yo1ro.com and got excellent results for most of the keywords. It is very interesting to analyze the results of the near 80 pages made, and which ones obtained good results. All pages have one of 5 templates, depending on their role in the site network: sitemap, 1st level keyword, 2nd level keyword, index to secondary domain pages, randomly combined keywords.
Since we can change the structure of the templates, getting different keyword densities and element (image, metatag, heading, tag) combination, there are many experiments to be made. Those experiments let us know which factors are important (positive or negative) for results.
If you understand some Spanish, ask us for the detailed results of this experiment. Ohterwise, wait a couple of weeks for the next English experiment resutls.