Have anyone listed a system with them? Have you profited from that? Have anyone subscribed to a system ? Have you profited from that? I currently have following reservations. Some systems look unrealistic. For example, a system trades not so liquid instruments, makes 300 trades in a year and achieves 100% return. That amounts to an average profit of 0.3% per trade. Obviously in real trading, after accounting for slippage commissions etc that 0.3% profit will become -0.5%, and +100% return fill become -150% loss. Which means credibility for systems on C2 is limited, and the track record for the system listed there can't be used for attracting future investors. Another issue is that they conceal any subscriber statistics. I would gladly pay my listing fee, I only I had an answer to a simple question: if my system ranks among 5% top systems, what subscription income should I expect? Will that income exceed my listing fee (which is $196/year) ?