Advanced MySQL Replication Techniques
Subject:   Distance between servers
Date:   2007-08-14 13:01:23
From:   jlowe1
I'd just like to point out that you assume that the MySQL replicas are close together - especially when saying that network problems are rare :) I can tell you for 100% that when running replicas across multiple continents network errors (and data corruption) are anything but rare.

Not that this invalidates anything you have said, especially, it is just that the servers being "close" is a hidden requirement of your technique.