I know there have been posts on this firm in the past....but can someone just quickly summarize their offering and the meaning of "Combines" ? I am aware of their sim trading "test" platform, but I already have a great trading platform. ..linked to Interactive Brokers. Do I need to enter orders in both platforms then ? How does that work ? I'm trading ES/NQ Eminis. Would like to move up to 10 lots from my current 1-3 lot limit.