now that we have s-off, just flash cwm and then this zip - http://forum.xda-developers.com/show....php?t=2708548 to get native tether to work.
op, this is the final method and I can verify it works. add this to the first post.
in short, native tethering works flawlessly.
Edit: If you want a permanent root than uninstall weaksauce and then flash superSU in recovery.
Not required for tether, but replica is right that people probably want it also