Thief-Acrobats are seen more as exotic warriors, spies, and assassins than as thieves in the Dragon Empire. Their exotic abilitie is not as useful for burglary in a world where anyone can bye a hover cycle, but their fighting provess is still up to scratch.
Changed Requirements: Thief-Acrobats in the Dragon Empire need not be tied to a thieve's guild. In fact, they are more commonly involved with circuses or elite fighting orders.
Changed Abilities: Any bonuses or special moves the Thief-Acrobat can use with the Balane skill also works with the Freefall skill.
New Class Skills: Freefall (Dex), Use Device (Int).