Website Optimizer tool can get more users if the team can get the valatidion from the Webmasters Sitemap valatidion ( Single Validation for any domain in the Webmaster Account instead of putting diffrent codes for every features eg. Website Optimizer requires some java script to be integrated in the website pages, that is really very much tedius task.). Kindly make all your tools available from the single valatidion only.With Regards,Mentor