Just because I haven't posted it in awhile, my neck routine is to do:
- A WTG (N-S) pass using the same-side hand (right hand/right side, left hand/left side).
- The second pass is again WTG (N-S), but using the opposite hand (right hand/left side, left hand/right side). This seems to put the razor at a different angle than the first pass and removes a significant amount of stubble.
- Third pass is ATG (S-N), again using the opposite hand. This pass uses mostly scything or sweeping strokes.