3. When posting binaries with Agent, make sure each file attachment is in its own message
When posting binaries with Agent each part must be in its own message otherwise auto-join fails, necessitating an error-prone manual-join. The choices are either loading the Agent queue with the add-on AgentPost: http://www.skuz.net/madhat/agent/util.html
Or better, using PP2K: http://www.cosmicwolf.com.
A good version for yEnc posting is at: http://www.usenetopia.com/YencPowerPostBuild3.zip