Some of you guys probably have some lag now, since your WTFast expired. But do not worry!
There is a solution to get rid of all those Combo Breaks and otherr lag spikes.
Just install the Leatrix Latency Fix!
You can download it here: http://www.wowinterface.com/downloads/download13581-LeatrixLatencyFix
When you see Not Installed or Partially Installed just install it, and restart your PC after, enjoy a lag free Cabal!