As promised, attached you find a screenshot that hopefully illustrates my thoughts. If you look at a trend, you will notice how certain lows are being violated all the time, while others are not. This happens within the distinct definition of trend theory, that distinguish uptrends (sequence of higher high and higher low) from downtrends (sequence of lower low and lower high). In a previous post, I already defined a swing of 30 points. As such a swing is about to finalize, significant highs and lows are frequently locked in, and mark a new major low. Often you recognize them in real-time, after the market has recovered roughly 30 points off its recent low and thus offers a new area for stop-loss adjustment. Those are the lows that a trend follower should focus on in an uptrend, and are what I call a primary trend, whereas those swings of 10 to 20 points within secondary trends are often misleading and should not bother us that much. Reactions in an uptrend (as long as they are merely breaking secondary trends) are a welcome opportunity to secure increasingly more profits, and need not be regarded as a threat. A reason why I find the Rainbow Moving Averages so helpful in visually portraying a trend.
The bottom line is that secondary trends get broken all the time, while the primary trend is of greater significance. The astute trend follower is therefore better advised to focus on the highs and lows of a primary trend, than getting beaten up by the secondary trend. In a very early post in this journal, I mentioned how the ES perfectly respects support and resistance areas. Such significant highs and lows of the primary trend are not violated either, until a meaningful reversal is at hand.