I think there is some mis-understanding about WIND and OUSE, sorry if
I introduced it and not made it clear.

The relation between the four parts of each acronym does not mean a
train cannot change from an OUSE direction to a WIND direction or
v.v..

The relation is that whatever rules when working on track apply to to
WB Inner NB or Down trains, and a variation applies to the OUSE group.

The main point is, every LU track has a designation, but not always EB
WB SB NB as was written a long way back upthread.

--
Nick