The unit documentation that came with the EB installation is old and has so many incorrect stats that it's essentially useless for me (or anyone that needs to compare up-to-date stats). The Heimstatt cards are pretty up-to-date, as far as 1.2 IIRC. I have a zipped version of it that's better, with real-time searches and Javascript IIRC. The online version isn't bad though. It just doesn't compare. You simply must open more than one tab in your browser and compare the units.