syncing bayesian dbs between servers

[Patrick Sherrill]

We run three sendmail servers all w/spamassassin amavis-new, clamav and 
mcaffee.  We've been using sa-learn to add to the Bayesian database. Is 
there a preferred method of synchronizing the Bayesian db among the three 
servers?

Apologies up front if this is a newbie RTFM question.
Pat...