Hello guys, How do you deal with "universality" of your systems? Do you think system should be good at all markets(or at least as many as possible) or can it be good only at one? I have few trading systems designed for forex. But I have following problem - some of them look great on EUR/USD but completely suck on GBP/USD. Should I worry about that? My intuition tells me that system should work good on many markets - this means it is not "tailored" for one market/curve. But my experience shows me that my systems tend to look different on different pairs. I use 5000 periods - intra. What is your opinion on that? Is it normal that system works in different way on different pairs? Or should I worry that system is not as good as I thought?