The higher high and higher low scalp trigger.  For this trade design you should select a 5 or 10 minute chart. Trades filters of; time of day and news events should be taken into account to filter out potential false triggers. The long trigger is described here but the short trigger would be the inverse logic. The following is how the trade sets up:

1. Find a chart pattern that has four clear points. The starting high, starting low, a higher high to the starting high and a higher low to the starting low. The number of bars (i.e. time) should be equidistant as much as possible from each point (i.e. a nice cycle wave pattern).

2. Calculate the number of ticks from the higher low to the higher high – this is the trigger bar length.

3. Set a limit order 2/3rds of the trigger bar length from the higher high to go long. For more aggressive traders you may want to use 1/2.

4. Set the stop at the higher low point and the target the same number of pips as the potential stop tick amount. You may want to try some scale in and out strategies to augment this strategy.

This normally is about a 60+% trade win/loss ratio, with a 1 to 1 stop/loss tick ratio. Give this a try and let me know how it works for you. In the thumbnail is an overview example of the trade design.