This is not as common, but this is where it gets more interesting. The best example of locating this trend is when you look at the pennant pattern.
With this pattern, you could double down and, arguably treat it as a triangle pattern. This has the same benefit as I outlined above.
You will have an initial target, and a secondary target to aim for.
If you had a large rectangle pattern and had a series of descending triangles within the rectangle you could still benefit the same way provided you were trading within the triangle, arguably.
However, in this case, you could also use different patterns to identify trend reversals.
For example, let's say you were using lots of descending triangles and you found a wedge, you could arguably say that’s the time to stop trading.