Hello again, friends old and new. I have been busy with non-automated trading, and except for getting crushed by the swoon a year ago I've been doing quite well with my simple system. Now that I've decided to cash out my 401K and go at it big time ($50k) with my TradeStation account, I am planning to automate my system(s). This should help enforce standards and consistency and generally scale my methods to a larger account with potentially more positions. Also, someone (thing) needs to rule the roost when I am not able to watch the market (that being all day). So this automation is different than last time (http://www.elitetrader.com/vb/showthread.php?s=&threadid=77887), as I have developed and discovered some new guiding principles. I'll be laying them out here for discussion, so please join in and let me know what you think. Rather than dump them all at once, we'll go through them carefully one at a time. Here is the first tenet: Path Independence Systems should be able to determine the current position at any given time, regardless of trade history. It should not matter what the position was last period - the current period is controlling. An exception to this is buffer zones (areas around inflection points where positions are not changed in order to avoid over-trading), provided the buffer zones are determined independent of the trading history.