There are support and resistance areas every 10, 20, 50, and 100 pips.
The minor levels have more to do with how people are structuring their orders as they are trading. They are 10 and 20 pips from swing lows and swing highs...
Certain futures markets like the S&P futures and eminis are structured in a more orderly fashion than Forex.
I don't pay much attention to those minor resistances.
The round number 100 pip levels on each currency pair are pretty damn strong support resistance levels...