I had tried those before posting, also tried the forcegid option... it seems they work when in normal suexec mode, but they get ignored when in "CageFS without suxec" mode.
Interesting thing is they seem hard coded, the web server runs as
But when running in "CageFS without suxec" mode. The user and group becomes "nobody"
at it cannot be overidden
I tested this with:
$user = exec('/bin/id');