I spent ten years of my life being dragged through the skies by 4 RR Darts and I don't remember there being any problem about coming right back to the FFPS (flight fine pitch stop) apart from the rate of descent that this would cause. (I seem to remember that we would have between 200 and 240 torque on an average approach).
What you absolutely had to remember was that the ground fine pitch stop had to be engaged after landing before opening the throttles again otherwise all four engines would melt down very, very quickly!