Hello Uplinker thank you for posting, have a look at this video (of a very nice raw data app). At 1.55 min you can see VLS increase. I have to say sometimes it doesn't happen though. It is most apparent with speed brake out.
https://www.youtube.com/watch?v=7SsECGITHCY&t=129s
Thank you goldenrivett, very interesting bulletin but it says it doesn't calculate weight when the speed brakes are out and this effect is most apparent when they are out.
Got me stumped, one of those things that you really don't need to know but it's nice to know!