hmmm well i was sorta hoping to have a parent process resident in memory, and then be able to allow more users access to the parent process, maybe by using groups, with something like:
usermod -g PARENTWEBSITE.com CHILDWEBSITE.com ;
but i have a feeling that suexec may be too restrictive to use groups, unless you have a better idea.
here are my suexec messages:
[2013-02-19 15:05:51]: uid: (608/CHILDWEBSITE.com) gid: (595/CHILDWEBSITE.com) cmd: php5.cgi
[2013-02-19 15:05:51]: target uid/gid (608/595) mismatch with directory (543/537) or program (543/537)
id CHILDWEBSITE.com ;
uid=608(CHILDWEBSITE.com) gid=537(PARENTWEBSITE.com) groups=537(PARENTWEBSITE.com