That signal is built from 2 indicators. When both kicks in together I have a strong signal, when only one indicates change, I have a weak signal.
Weak signals fail in a bigger %... That doesn't mean they can not be followed, just more caution is advised...Strong signals are just like that, damn strong...
I also have a strong sell for oil from the $68 level, so far that one doesn't seem to be playing out. But if both commodities were to fall eventually that should be bullish for the Dow...