Replication in mysql with many servers
If your Servers get out of sync they play back the events from the binlog, so as long you have all statements writen into your binlog, the master/slave is able to catch up. I had to catch up 12days without any problems, but in a cluster this is not what you want to happen.
And be careful when using "unsafe" statements, this are statements which the server can't reproduce on your master/slave setup.

Mysql Article on safe/unsafe statements - http://dev.mysql.com/doc/refman/5.1/en/replication-rbr-safe-unsafe.html