In fact DD < CR is not the best criteria for comparing live trading with the backtest. You can find some methods here: http://www.financial-hacker.com/the-cold-blood-index/.

The next Zorro update will also contain a "retest" mode for backtesting the current live period. But we can't add tails to the Z system backtest curves. We don't publish live results anyway, and even if we did, the tails could be only for a past version and not for the current version. It's just not worth the effort.