A321 yesterday. There is definitely no VLS increase when Config 1 and Config 2 go out; it just drops away as you would expect.
On the youtube clip of the raw data approach you posted James, I think the speed brake is out - VLS is right up against the speed bug, so I think this brief few knots increase only occurs if the speed brake is deployed AND when only the slats are moving out.
Last edited by Uplinker; 6th February 2017 at 10:01.
Reason: spelling