snake eyes
I subscribed to this system for quite some time. After starting out well, it faltered, recovered, faltered again. - you see it at the trading curve.
The trading itself is rather disciplined. All orders are brackets, so there is clear stop-loss as well. One or two trades typically a day. - Sometimes none.
So the problem of this approach is none of the standard problems like over-leveraging. The basic problem seems simply to be that the signals are not good enough.
You can compare the C2 results with the developer system description. - If you factor in the rather high fee, this system is a clear looser.
If you wonder, why I still give it two stars: I value a disciplined trading approach, even if it is not fully successful.