OP is right, he is actually nicely up (26% or so) if we only account $5 as commission applied to a return trip. This can be done if one chooses IB on the upper right corner just below Statistics. If you choose Daniels Trading as broker, the system is down -70%. That is quite a difference!
Now I am not exactly sure what the correct autotrader fees are, but according to C2 that ads another extra $9 to the commission per return. If a trader just wants to show his trading ability (instead of trying to trade for others using autotrader) then the IB setting should be used to see his returns.
Since he trades different sizes each time it is a bit harder to account for the whole length of the system, but I did a quick math, he traded about 460 contracts so far, or on average 3.5 per trade. (460/128 trades)
Anyhow 460 x 9 = 4140 should be added to his return to get the app. real value. And switching to the IB broker that actually does that, so instead of down $1860, the chart shows -1860 + 4140 = 2280 (well, 26% on the chart) That is not bad for 3 weeks return.
---------------------------
That being said, I also noticed something that goes against OP. His very first trade is the biggest, being $1630 or 70 YM points with 5 contracts. He never came close to this profit during the next 120+ trades. The second closest was $1105...
Now why is this important? Because it is not hard to start out with a bang for any system. You make 2 systems, you take 2 opposite positions, and when one is in a nice profit you keep that one and leave the other to die. If you are really into it, you can do it with 4 systems, guaranteeing at least the first 2 trades to be big gainers for 1. And if I subtract that 16% gain from his results, his return is only 7% for the next 127 trades.
In short, 2/3rd of his gains came from the very first trade... Make that what you want...
Now that one can choose monthly charges instead of in every 6 months, this trick is much cheaper to do.