I need some help on how to trade retracement after a spike using the second trading signal release by Felix for wednesday trading of GPD/USD as an example. If the values released favors a buy signal, for instance, and the price retraces back to where it started before the spike, is it expected that one should place a buy order with the hope that the price would again move up or the order has to be place before the price retraces to the original value where it started before the spike? in which case it becomes a sell order.