On the thread about worst indicators, easyrider posted about one author's results that he never found any system based on indicators that worked. I always wonder what these guys mean by "worked". I am presuming they mean that entering and exiting with an indicator produces net profits. Given that definition, the authors are probably right. The prevailing thought is that using indicators can help skew probability in your favor such that entering with an indicator or two improves the odds of a trade moving in the desired direction versus jumping in anytime yelling "yeeehaw I'm a traderman." Following that premise is the concept that trade management is the real key, ie., where to put the stoploss, when to take profits, partial or full, etc. I agree with this concept. To be sure, I am not talking about scalping. In my very limited knowledge of scalping, and after having sat for two days with the number one guy from a well-known prop firm, I have to say entry is buy far the most important part of that trading style.