Has anyone executed the same trade (or the same type of trades/strategies) using both their paper and real accounts with IB? How close to the real market were your paper trading fills (eg., did the paper trader give you a good estimate of your slippage, etc.)? Were you able to paper trade futures, options, and stocks? Any major issues with the paper trader? Generally speaking I like IB, but I have not tried the paper trader yet. I would like to test some things using their paper trader but I also want to get a sense for how far off my execution will be when moving from the paper trader to a real account. Your $0.02 USD would be much appreciated!