Sequence 3C-E1 can be used with an alternate setup to move misplaced facelets when needed. With the alternate setup, the red misplaced facelets are on the left face instead of the front and back faces as shown below (turn second cube with mouse to view left face). The sequence moves the two red misplaced facelets as shown by pressing play on the second cube (the result is yellow/red cubies). The blue misplaced facelets on the back face are not part of the setup and can be ignored.