But if you
. trade only the major pairs, namely EUR, JPY, GBP, CHF, CAD, and AUD if you count it major, personally I'll refrain myself to EUR, JPY and GBP
. don't trade cross rates, such as EUR/JPY, EUR/GBP, and GBP/JPY
. don't trade currency options
. don't rely on stop orders outside US trading session
. and your trade size is regularly under, let's say, 5 mil dollars
than Globex currency futures through IB TWS or Patsystems J-Trader offered by many solid brokers/FCMs are your best choice. And if these two platforms cannot satisfy you, you say you want more advanced such as TT... really you wouldn't have had asked your request on the board, or anywhere publically.