Before I go into a diatribe about this issue, let's try to see if we even concur about some basics of movement. Suppose 12 o'clock is FW (forward along wall), 6 is BW (back along wall), 7:30 is BDC, 9 is C, 10:30 is DC, etc... You mention that you would end count 6 roughly with both feet pointed DC (10:30) and this would probably correspond to some (horizontal) location X past halfway along the wall. Say you travel some 4 feet on the ensuing 123 and end up at location Y on count 3. At what clock position (angle) would Y be with respect to X (remember your feet are pointed at 10:30)? Note that I'm purposely avoiding the use of "LOD" as it isn't meaningful due to the changing angles.