Darters at Fafhogg. If you take the darter file which is I believe ROM5/81.dat out of your POL folder like you used to be able to, it will now lag/crash your game. They did this so people can't have darters out of the way. This goes for the same in any area with that model, such as Dunes/Meriphetaud Mountains and so forth. There is a way though to remove darters. You replace your 81.dat (make a backup of it incase you ever want to see darters again) and put in the file, it is an animation file of nothing, so you can't target it, and nothing is in your way, essentially, you have no darters anymore and can do target on fafnir faster again. This file will verify on check of 81.dat so you don't get crashed anymore. Default Directory is C:\Program Files\PlayOnline\SquareEnix\FINAL FANTASY XI\ROM\5\81.dat
