I had the benefit of only having to go 60-70. I'd been 60 for a decent amount of time, so I had plenty of endurance built up for the grind. Then, like a dumbass, I leveled my mage up to 70 from 20ish, and it's all gone again. I decided I was even more of a dumbass, and I'm now leveling a Pally (35 at the moment, been leveling for maybe a week).