For the SARE rules you only need to use ONE of sa-update or
rules_du_jour. Either works fine. sa-update has the potential to get
you newer rules faster without any significant additional load on the
servers serving the channels.
Assuming you want to use sa-update for everything...
- remove all the SARE rules from /etc/mail/spamassassin
- disable your rules_du_jour cron
- continue using sa-update how you are
(you'll find all your updated rules in /var/lib/spamassassin
which is where they are supposed to be)
Daryl