The foreign currency spread is too much on the automatic conversion, so I pay the manual 15 dollar commission but I'm not sure this is more economical, especially when wanting to build a position. I'm moving my cash into another brokerage for this reason. I can apparently convert my dollars manually from USD to GBP, within my account, so I can do this at a time when the exchange rate is more in my favour, before I withdraw. Is this easy to do does anybody know and are there extra charges? The other options is reverting my settings back to manual conversion and the system will do it for me? What is best?