Improve CRM Performance: PrincipalObjectAccess Table

Hi
Found this really interesting msdn blog to improve CRM Performance by controlling PrincipalObjectAccess table.

http://support.microsoft.com/kb/2664150

http://blogs.msdn.com/b/crminthefield/archive/2011/06/09/principalobjectaccess-performance-recommendations.aspx

and this one for some additional adventures on PrincipalObjectAccess Table :

http://community.dynamics.com/product/crm/crmtechnical/b/crmcustomereffective/archive/2012/06/01/unmasking-crm-s-principalobjectaccess-table-with-a-free-secret-decoder-ring.aspx