my concept is very simple
How happen if price meet Support and Resistance?
the answer is simple...
price stop moving for awhile , and then the price have to make decision for continues or reversal.
Week support resistance = price continues
strong support resistance = price reversal
Idea :
What happen if GBPUSD, EURUSD, AUDUSD meet support in the same time ?
--- they stop moving and they will make a correction move
So, I use 3 pairs to make decision, GBPUSD, EURUSD, and AUDUSD
2pairs will be enough to make decision,
3 will be better