I actually realized something long before I saw this that makes me support this even more.



So, Photo Finish has Twilight's tail, right? (Compare images if you don't believe.) Now, find a good picture of Rainbow Dash. Put your hand on the screen so it's covering the spikiness of it. Now look at it carefully. IT'S TWILIGHT'S TAIL!!! This discovery makes support this even more than I would have before.