There are several critical factors that need to be considered in selecting the right trading system for you. Investors are always looking for a trading edge to exploit. Finding such an edge is akin to the quest for the Holy Grail and many would be traders spend their time bouncing from one system to another, constantly looking for the perfect system. If this sounds like you, let me suggest that you change your ways, quit searching, and start making money.
First, realize that every system will have loosing trades and there will be a series of such trades. The draw down is always a challenging time. You have to be prepared mentally and financially to ride out the draw downs. The way to prepare is to check the historical performance. The historical performance period should be appropriate for the number of trades and the rules in the system. What this means is that a system with many rules will need more trades to prove its validity. I like at least 50 trades per rule and be very conservative on the number of rules. For example, if the system is:
Go long when the current price is greater than the 20 period moving average. Close when the price drops below the 20...