Authorization question

I'm running a user repository, and there's some weird authorization
problem. I want to let people determine the control that they want,
so I have:

  <Location /usr>
    Dav svn
    SVNPath /home/svn/usr
    SVNAutoversioning on
    SVNIndexXSLT "/svnindex.xsl"
    Allow from all
    AuthType Digest
    AuthName "Subversion"
    AuthUserFile /home/svn/etc/passwd
    AuthDigestDomain /plt/ /iplt/ /iview/ /usr/ /play/
    AuthzSVNAccessFile /home/svn/etc/authz.conf
    Require valid-user
  </Location>

which works fine, until someone wants to make a directory
world-readable. So, I figure that I'll let the authz.conf be the only
guard for unwanted reads, and changed that last line to:

  <Location /usr>
    ...
    <LimitExcept GET PROPFIND OPTIONS REPORT>
      Require valid-user
    </LimitExcept>
  </Location>

The world-readable directory works fine, but now normal per-user
control doesn't work.

Is there anything wrong in the above setup?

-- 
          ((lambda (x) (x x)) (lambda (x) (x x)))          Eli Barzilay:
                  http://www.barzilay.org/                 Maze is Life!
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