This episode...I haven't laughed that much since "Pinkie Pride".  Testing, Testing, 1, 2, 3, is just filled to the brim with creativity.  Every scene has Wonderbolt history, impressive animation, engaging conflicts, or funny visuals.  Or even sometimes all of the above.
DRWolf Images created by flaminbunny:
http://flaminbunny.deviantart.com/
My Little Pony Characters and Images belong to Hasbro.