I personally only use techniques with take profit 2-3% target for each transaction, Of course it can only be done by daily traders because you have to really focus on market price movements. Besides that you also need to learn 2 other techniques, technical and fundamental analysis.
I never follow your technique because we never expect 2 to 3 percentage of daily target. Normally market will move forward or backward at anytime so really traders are change it will start backward. Because they know how we maintain the each transaction so secret techniques are never explain anyone.