From what I've heard hand flying raw data is highly unusual at BA. Disconnecting A/P (but keeping F/D + A/T on) somewhere on final would be the norm? Does that sound more correct?
That just about sums it up.
I can only speak for longhaul but why anyone would want to practise raw data flying after a 8-12 hour overnight sector defeats me.
Such flying can be practised on Caribbean visual approaches if one is desperate. And on my fleet the A/T is always on.