[1.2.291] [KOR] Dual Blade Skill Tables

I've heard you have to buy the skill books for this class from the CS...is this true?

Also, the % on the skills is high because the dual blade type weapons add very low amounts of weapon attack compared to other weapons.

You don't HAVE to; they're just available in the CS with a 100% success rate.

And they have very low amounts of watk because they use regular Daggers in conjunction with the Blades.