Americanfigboy,
I haven't tried the method above, but I'm sure it will work. I have demonstrated the "chilling" benefit on softwood, green cuttings that have stopped growing prior to dormancy (see "Rooting Experiment" thread whitepaper). I hypothesize that the chilling simulates dormancy and gets the cutting ready to root. If you go straight into soil, it's hit-or-miss, if you take the time to prep as described above, there is a good chance you'll improve the results. Let us know how you make out.