I started working towards level 51 in Searing Gorge, there was a handful of quests to do here, one of which netted a huge 11k xp, so it was worth the rather long trip. Because I’d been to Felwood and half started questing then decided against it and left, this level felt extremely long, but after a few hours questing in the gorge, I hit 51. Finishing up the remainder of the gorge quests (except 1 which had an incredibly annoying droprate), put me close to half way to 52.
From there I went to UC to do my first AV game, in the hopes of getting an Icy Barbed Spear – unfortunately the queue times were horrible and we lost the game in the end so no spear for me – nor could I be bothered trying again. Following that I went to the Blasted Lands to complete a series of grind quests which got me level 52.