Could this just be a fluke, a peculiarity of this one example? Let's try it on several other charts, different tickers and different timeframes. In the following charts, the standard curves are dotted, and the new Calibrated Curves are solid.
Figure 9.3 is the weekly bars chart of AT&T, ticker T, from 2001 through mid-2006.
That huge price drop in late November 2002 was due to a major divestiture and reorganization, after which it really became a completely different company, so you might expect that technical analysis (TA) tools like MIDAS curves would not hold their ...