They have evolved to some degree.(Not That I think we will see a cross over at the close tomorrow.)Part of the evolution is due to understanding my signal.I now would consider shorting in a bull mode even when not extremely overbought.
I will tell you my go short signal is much less reliable than my go long signal and this will probably affect the % that I will go short in the future.
I think with Intel's earnings this will probably be a moot point for now.