Hahaha lol to all the arm chair 172 sim pilots that think they know a thing or two about floating. I can almost guarantee you this was a ferry flight and they were completely empty, hence the float. Take a seat and let the pros do the job, stop judging until you do it. Beautiful approach.
The CSeries ( A220) is speed stable, where as the A320 family is attitude stable. To give the pilot proper feedback when hand flying we put a pitch trim switch referenced to a speed bug on the airspeed scale.
