Who cares if they power level to 50, you still need to get guildmarks. Honestly I know someone who has been recently pl'd to level 38 as a CNJ, they have no fast cast, they are gimp as shit, no money to buy gear. Someone can only max pl you to 40 really, a level 40 who's done nothing but pl'd is the gimpest character that now needs to be twinked.