I am using this method to catch only big moves. It works well but needs some tweaking espescially for exit. 30 Min and 1 Hr time frames are suitable.

Indicator Setup

Bullspower default setting (13)
Bears Powerdefault setting (13)
Accelerator default setting

Buy Rules

Bulls Power increasing and greater than last bar
Bears power >= 0
Accelerator > 0 and greater than last bar

Sell Rules

Bears Power decreasing and less than last bar
Bulls power <= 0
Accelerator < 0 and less than last bar

Exit

Long Exit: When bulls power and Acccelerator decreases for 2 successive bars.

Short Exit: When bears power and Acccelerator increases for 2 successive bars.