Make them 5 mins. There is no benefit to having this bottleneck on a server with DZs. People are doing unhealthy things trying to get these ground spawns and they're competing against documented cheaters who are selling them for multiple Kronos. Also it is not even consistent with the original design where the ground spawns were a non-issue and trak teeth were the bottleneck. We have 12 weeks per expac to enjoy content in-era and this is just driving people away. Guilds will fall over this as people burn out putting in unhealthy hours trying to get these. Make them five minutes.