Actually, they spell out the rules quite clearly in the Rules Comparison Chart:
http://help.topsteptrader.com/knowledgebase/articles/241566-rules-comparison-chart
The big difference is from the combine to Junior Trader, where there is a set of "Additional Rules" already mentioned in this thread.
Once you jump from Junior to Senior trader, the "Additional Rules" go away.
so how does the lot rule work ?
If you chose 3 and then only trade 1 in live you get kicked back to the combine ?
