Quote Originally Posted by Aeryr View Post
Something like: rogue 3 / Swashbuckler 3 / barbarian 1 / Swashbuclker +6 / Fighter 2 / Swashbuckler +5
Assuming you've got Swashbuckler as your favored class (which would be the case if you were a Human or Half-Elf) you're still suffering a 20% XP penalty from having Barbarian more than 1 level below your next-highest class.