Hello, sorry but I'll cannot improve this (you can try to blacklist water zone in BGs (pathfinder try to avoid blacklisted zone when he generate path)).
Hello, Can you try to reinstall WRobot (or close WRobot and remove file "WRobot\Settings\RobotManagerGlobalSetting.xml") and tell me if you get this problem again?
Hello, Sorry but I'll not update WRobot for PTR server now (I upgrade WRobot beta version for PTR before important wow update, but not for small update, and the next WRobot beta verison is probably for Legion beta).
I am not sure to understand exactly what you want (and I don't know how play pala ret in TBC). But if you can try this: testi retri.xml (if it is not this, please give me more detail).