This would solve most hunt problems. obviously, A Rank respawn would have to be reduced to maybe like 15 minutes if not 5 or 10.

There are 3 tiers of trash targets no reason why there couldn't there be 2 tiers of elite targets. Reduce the B Rank seal reward to 50, have the weekly be 250 (or maybe even more).

For quality of life, maybe make it so that people in the same Free/Grand Company all get the same A Ranks each week and that it rotates through them all instead of being random.

This will actually increase cooperation between players. Have FC and PF groups to bring down A Ranks instead of mass zergs. Have people out in the zones daily looking for B Ranks and helping other players find their marks.

The obvious side effect would be that people can't hunt endlessly all day and amass 1k+ seals a day. Not sure if that's good or bad. That can be countered by lowering the respawn time of S Ranks as well, make them pop every 8-12 hours.