On Defiance here. This is a major issue for us as Mob density is proportional to fighting skill grind efficiency. Down south us HOTS have to search for 5 mins to find a single mob, compared to up north in the other two factions, you can chop your way across a field of mobs. The high density of mobs should be focused around the central area of the map, and gradient out in all directions, to less density towards the outside of the map/starter areas. I can see the other system working on PVE maps to some degree, but it certainly does not belong on a PVP server.