Move '1.8 KitPvP' to the 1.8 server. The gamemode is dead as it currently is, though would probably see a spike in players' interests if it were on the correct server. This is because most 1.8 fans do not want to have to switch to 1.9 to play a 1.8 game, only to have to switch back again when they want to play Skywars or Eggwars.
