When the Dow Gold Ratio turns up and makes a call to move to stocks, stay away from commodities.  From the January 2013 call to move to stocks take a look at the returns for the major commodities versus SPY:

SPY    +85%

Crude Oil    -50%

Gold            -26%

Copper      -26%

Of course there will be times where an individual commodity outperforms stocks during a secular bull market, but over the long haul, stocks will out perform.

When you go back in history for times the DGR was trending up, you see the exact same thing.  Commodities will have negative returns over the course of the entire stock period.