However, we will fly the way that makes our examiners happy of-course
Sideslipping-I asked my examiner about this, relative to the PFL, before flying my commercial GFT The reply was to the effect that if the flight manual didn't prohibit it then it was OK. So I did, and I passed.
At the same time, a sideslipped approach is much better for maintaining runway centreline and touchdown point visibility than an S-turn.
Yes, and it's fun. Mind you, so are the S turns....
I would argue for both in a forced landing, as being easy to vary, rather than flaps which tend to be a rather coarse and essentially one-way adjustment.