Airbus Approch Speed: VLS versus 'S' Speed
What is the lowest speed that can be safely flown on approach before taking flap2? Is it 'S' speed or VLS?
I have asked this question to a few other pilots and there seems to be two very distinct opinions:
1. NEVER reduce speed on approach below 'S' speed without taking flap2.
2. Generally take flap2 at 'S' speed but when operationally necessary you can safely reduce speed to between 'S' speed and VLS without taking flap2.
I personally agree with those in group 2 but I would be interested to hear were you, and your company SOP's, stand on this?