We don't currently have a 1:1 ratio between our Analytics and AdWords accounts. Instead we have many AdWords accounts and 1 Analytics account with many profiles. We want to separate this out but we're not sure what we do for the .com site as we use different AdWords accounts for the US, UK and Aus markets but all feed into the single .com site. Is the best way to use several Analytics accounts with country filters and one account with no filters and no AdWords account attached as a "master" account?