CC'ing Tristana during her W windup should stop the jump entirely.

So often do I see this little devil get CC'd for as long as your local train department is delayed, and she still manages to complete a FULL jump after that. I've seen her do this despite displacement CC like E and such, I don't understand why she can only be interrupted when she's mid-jump. It almost always guarantees her escape, I actually have an easier time preventing from doing a clean escape.