@LucienLassalle
Interesting. I'm not sure I was all the way up to date when I upgraded to 8.3 and it's possible I was a month or two behind. I only upgraded because I ran across a need for the virtualized TPM support (which is cool to see implemented!).
Thanks again for all the effort in looking at this!
@bleader A note on the option screen VM restart required to use new value is good enough. No realtime/live change needed. I'm just looking for quick easy GUI option rather than XPC CLI.