For scalping, I think technical analysis is the best. We do not need to see what factors can bring the forex market down or up. We only need to know technically when the pips will be higher or lower. So we have to place our order and get out of position as soon as we achieve perfect profit I use bollinger band indicator for scalping, I buy or sell when candles are in the top or bottom line especially if it is out of line because it will be back in bollinger bands again sure, then I take advantage when touching the midline but sometimes earlier than that when I feel that it will not be about the midline.