Recently I've played my first dozen of blitz games against chessmaster.
The fact is that I'm losing to personalities wich I would usually beat very easily. They keep making grotesque blunders, but are relatively precise sometimes. For example, on the endgame, they rarely miss a mate oportunity.
Apart from that, they use less than a minute from their 5 minutes clock and games have always less than six minutes, while with human players it would last more... after all, we can think during our opponent time, too.
In practice mode I can set different clock times, but not in rated games.
What is the best way to simulate rated blitz games and what is the correspondance with real blitz ratings. Perhaps by experience you can tell that.