Flying at the end of the envelope VGs whistle.

No Vgs for Cirrus, they would most likely work nicely, but it was a certification paperwork issue.

Definitely I rather have a parachute in the plane than VGs , but for what I fly Vgs shine.

https://www.youtube.com/watch?v=IpWHCgYRNLI

That is some seriously impressive flying. Fun to watch.

Amazing what you can do with a 182