No, I don't check out curve fitters who makes money from subscribers rather than from the market. They seem unable to make money from the market.
Your don't have to trade forex. As far as I can see, all markets work the same way. So feel free to demonstrate an edge. If I have access to that market then I will be happy to put some money on it to make the demonstration real. As you probably know, the market only cares and reacts to real money.
Usually those signal providers share's their mediocre systems for subscribers
and keeps some of the best strat for themselves to trade at least for stocks
and futures that is.
How can it be curve fitting if their making cash on real trades ?
lol