Drew a few patterns and events in for fun :)..Could've added a few more but the chart is cluttered already...
The Head & Shoulder pattern (H&S) you refer to (
GREEN) isn't quite a mirror image but has neckline this generalised pattern is bearish..
H&S are very reliable patterns for predictions.
H&S patterns are common, many go unrecognised ...see the sloping H&S pattern (
BLACK) this type of pattern often gets missed .. note the spooky neckline break.
Support lines that get in the way of a pattern does affect the probability of the predicted bearish outcome.
http://i458.photobucket.com/albums/q...2024092015.png