[gentoo-user] Portage-utils reinitialization - do I need it?

[Mick]

This came up today when I updated portage-utils:

 * Messages for package app-portage/portage-utils-0.8:

 * /etc/portage/postsync.d/q-reinitialize has been installed for convenience
 * If you wish for it to be automatically run at the end of every --sync:
 *    # chmod +x /etc/portage/postsync.d/q-reinitialize

I'm not really sure if I need to be running this script after I resync:

#!/bin/sh
[ -x /usr/bin/q ] && /usr/bin/q -r ${PORTAGE_QUIET:+-q}

which from the man page of q tells me that it will "reinitialize ebuild 
cache".  Do I need this if I already use eix?  Doesn't eix manage all portage 
databases?
-- 
Regards,
Mick