"but not DW uses 2X4 to change your attitude"
Our Power Gear hydraulic stabilization system works flawlessly. I turn it on and hit Auto. It will stop and display error if one of the legs runs out of travel room.
As far as when to use "cribbing" That is Sharon's job as she is more level headed than me! While she is guiding me into position she seems to know intuitively if we need to "place boards" under the tires.