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RE: [Metastockusers] Scott---Building a Profitable System



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 > I have a couple of systems for up trends, down trends, sideways
 > typical and sideways with rotation. Each one has a different
 > expectancy and different values for P/L ratios etc. 

 > After I use the system to find high probability trades I fiter the
 > charts through my best computer--the one in my head. In general that
 > improves the ratio of winners to losers by about 50%. In other words
 > if my system has a 50/50 ratio, my evaluation of the charts improves
 > the ratio to 75/25, and often better. 
 
Are you saying that if the market condition specific systems you have created had 50% winners, that your brain can improve it to 75%?  If that was the case, then your systems are missing some major aspects of the market that you could build into your models.  You say that is difficult, and it might be, but to go from 50% to 75% is an order of magnitude change, suggesting its not just a little bit of personal opinion on the markets that you are adding, but indicates some major analysis missing from the systems.
 
Adrian


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