Grind for rare itens in this game is awful, few monsters, many players and a long respawn. I spend a lot more time looking for monters than killing them, usually i keep changing channels trying to find more monsters, but all of them are full of players and almost no monsters. I really like to keep trying drop itens that i want, but this is the worst game for it. I think you should increase mobs and reduce even more the respawn time.
And one more thing i think would be great, not everyone has luck to drop itens fast, so i think you should reward these people who keep trying so hard, for example if 1000 monsters were killed and an item has 0.1% chance to drop, this chance could increase for 0.2%, at 2000 the chance rises for 0.3%, so goes on, and when the item drop, the chance go back again to 0.1%