Thank you ,Quercus
Thank you for that.
Just a silly question on this one, ( I am trying to get the just of it ) 
With that system, would you use the Bar chart  High,.Low,.Close. ?
Or just today’s close?
And
Do you use "today’s data"  and use  today’s low, to draw a line back .? 
For example :  Presume a stock opened today at $0.47 went as low as $0.45 and closed at $0.50
The method would be, to use the low of $0.45 ( today’s) draw a line back in time ,till it hits something and use that days low, as  your "Stop loss figure "  
Am I on track with my presumption ?
Thanks for your help .