On the conical burr grinders, the open/closed lever for the shut off faces the front of the grinder, becoming the adjustment marker. And the location of the lever will move as you adjust your grind
Revision 1.2 is backward compatible to all Baratza conical burr grinders (Virtuoso and Preciso)
If you are setting up a Forte or Vario, you might require a new upper burr holder as well.