User blog comment:Miskos3/Fairy Tail Episode 180: Garou Knights, Review/@comment-178.148.168.171-20140503121051/@comment-1359322-20140503122541

This episode used Chapter 307-308 and the manga is currently at 381. 73 chapters isn't actually that way ahead that you think it is

If they didn't add any filler scenes they probably would have filled till Chapter 309 for this episode already since Episode 179 and 180 without fillers would fit just nice into an episode.