I saw that thread as well. I laughed.

Here's the thing. He did it all eye-balling. So many different variables involved with just eye-balling something like this, on top of the fact certain action skills and ocd skills have different animation locks.

I might actually go test it later, but the best way to do it would be to record a sequence of abilities being used at 60FPS and import it into Sony Vegas or any other video editing software, break it down frame by frame and convert the frame_duration of the ability into seconds/milliseconds.