That sounds like way too much math for my pitiful little caveman brain to handle on a day-to-day basis. I can add and subtract in my head, but logs? I'd rather keep it the way it is, until someone writes some code to do the thread for us. Actually, that might be against the ToS, so never mind.
Actually, Atlashill, what you described already exists in the wonderful world of Unspeakable Evil. Check out his thread, specifically this chart: http://uevil.maybe.net/testing/newcharts/PANS.html