1) We do not have a Rogue Dev, as stated at the TOP of the discussions page (as well as on several other pages). If you know anyone with C# experience that plays a Rogue, please send them our way.
2) Please don't state that a model is useless because you specifically are having a problem, that's just bad form. If you have specific concerns please post a new Issue in the Issue Tracker and attach your Character.xml file. So someone (when they have free time, since there's not a Rogue Dev) can/will look into it.
3) "level 60-83 dummies" I think you mean 80-83 as we only code content for Level 80's, not anything less as Rawr is intended for 80's.
4) If you have noticed specific examples of parts not correctly updating upon target level change, please note them in the Issue Tracker so someone can get to it. For Example, if the Hit Rating cap appropriately says 8% for an 83 and isn't changing to 5% for an 80, someone needs to look at it so please cite it for us and give us the example character file where it's happening. Even better, try and find the code break for us and submit a patch that fixes it.