From my stock trading days I remember reading in several books with advice stating to never use market orders, only limit orders. In other words, let the price come to you. However, I do recall seeing any such advice in any forex materials I have read, or in any forums. Seems like the same advice should hold true for forex. I have tried using limit orders below the price and I have tried using limit orders above the price. I am using signals from VT for placing trades. I have noticed the price almost always retraces some after a signal, so I tried using a limit order on a pullback of 5p - 10p. This has worked out very well for me.