I'm curious, what tools are you using to track your keyword positions and how often to you update on them?
I have about 5 clients, each one with around 50 to 100 keywords and they want monthly reports on their keyword evolution.
As you can imagine I can't do them manually every day. So I use a tool called ranktrackr. Pretty cool, I don't need proxies I can access the reports whenever I want (both excel and PDF), it checks for all keyword positions every 24 hours and can be set to track depending on country and language, which is a big plus for me.
I've tried in the past actual software that you install, but none worked as good as this, no to mention the lack of accuracy.