Does the direction of the shift lines matter? I am asking because the shift tool sometimes creates parallel directions (top) and sometimes not (bottom)…
The direction matters, but not in this case, as both the start and end points of the “shift” instruction are at the same vertical position.
The processing order is different in both cases.
- Round the top node of o to the zone
- Move the top node of e by the same distance
- Define a stem from the top node of o to the inner node
- Move the inner node of e by the same distance
- Round the bottom node of e to the zone
- Move the bottom node of o by the same distance
- Define a stem from the bottom node of o to the inner node
- Move the inner bottom node of e by the same distance
As long as there are not two errors pointing to the same node, you should be fine.