I set up an equation to determine that 4 atoms one way and then 8 atoms the other way, was the best way to get distance.  Then I realized that if you make vitae and mors for all but 2 of the atoms on each brick, and then use salt directly for the last 2 atoms, you can get them moving quicker and thicker.  Organizing the 8 atom stick this way also lets it get the most distance out of the swings right before the end.