Remind, that those experimental systems with a trial period, transactions for which were outlined on the forum, plus new, now moved to blog.
All systems, except for the third, signals are given in advance by pending orders.
Why is it done publicly? It's that simple — this is the only way to force yourself to continue to trade the system under test, methodically and constantly. In those experimental systems that have not been published, I miss deals quite often — then too lazy to open the terminal, then I forget, then just for some unknown reason. Recently, after a month and a half of demo trading, I stopped testing the system for pair trading with American stocks. During this time, it did not turn out to be a plus, though, I must admit that I traded slipshod, not always following the rules, and sometimes I just forgot to close / open positions. But despite this, I did not feel that there is any advantage in pair trading. — rather more flaws.