I’m sure others have said but can you please just not have the rallying cry have a cooldown? If people have ony or Nef head they can just drop it for city wide buff? The 6 hours wait is too long and out dated. A big part of raiding in Classic is speed clearing and high parsing. Allowing guilds to have an edge over others because they happened to get their Ony head out first would be silly.
Also if people think their getting grief killing an enemy priest resetting a head imagine the grief a random person dropping a dragon head at “the wrong” time would get.
Only real solution is to have no cool down so guilds can pop dragon heads whenever they need to. Really is the easiest and best solution.