That's...pretty impressive.
Just tried just now on Normal on RDM, got it to 49% at 28 minutes <_<
Stone2 was doing 582. I did find that you can kinda 'pin' it though. On the back end of the landmass, if you look at the tunnel and run left/right, he'll path strangely and never come within melee distance if you keep moving. Pretty much useless though if you don't have it gravity'ed since stopping to cast will give it time to get to you. I'm kind of annoyed.
XI Wiki


