In Saiva Siddhanta it is simply not viewed as a separate path, so I have nothing to offer. We see four overlapping stages, and this view is a major difference between us and most Vedanta schools. In my view, jnana is an outcome of the first three stages, which are, in order, charya, kriya, and yoga. So jnana (wisdom) is simple a natural outcome of mastering charya (virtuous living), kriya (bhakti), and yoga (meditation, dhyana). Not a separate path at all. One of the challenges for neo-Advaitins is that they allow themselves to skip the first three, and then get little jnana as a result.
My testimony about Bhairava in the other thread illustrates this. I got 'all doors have two directions' from bhakti, and previous meditations. Applications of that are things like how birth and death are understandable as merely going opposite directions of the same door ... the door between the astral and physical. So to me, that's what jnana is.