Quote from Ditch:
I'm using BT live, although the fills in simulation mode seem to be rather realistic it still remains a simulation. If you want to be on the safe side subtract 1 or 2 ticks per trade from your P/L. But imo you should ask ask yourself in all fairness whether you can afford to trade the ES.
Quote from Fast_Trader:
You could email this question to their support dept: support@buttontrader.com
-Fast

Quote from easyrider:
I am using buttontrader. I used it in simulation mode for a couple of weeks before going realtime with it. I think its simulation mode is pretty close to reality. You might talk to Scientist. He says he is doing hi volume scalping with Buttontrader.

Quote from markc:
I'm already trading es profitably. I trade for 8-10 point swings a few times a month. But I'm considering adding a scalping approach to my trading. Why do you ask if I can afford to trade es?