How to Level Fast in Pre

I don't know if this is full proof but I just thought of it. Accept the quest "Charr at the Gate" from Prince Rurik when you can. Do it. But don't get the reward.
Then abandon the quest and start over. Rinse and repeat. It's 480xp total from level 4. It should work for any class.

If you check any of the guides available for the "Legendary defender of ascalon" title this is one thing you will find in all of them. The quest from the ele where you get firestorm is also a very quick way to level up by just repeating it and abandoning it.