See this?
The renown system is widely misunderstood. We are 26 pages into this thread and here is an intelligent poster with a well thought out post that still does not know about the hard coded minimum that I've been harping about for 8 months now.
http://forums.ddo.com/showthread.php?t=362736
Whatever the final resulting system is, it needs to be well documented in an easy to reference area.