Dual Weapon Mastery III

Dual Weapon Mastery III
You can wield two weapons or a double weapon without penalty.
Prerequsites: Dexterity 17, Dual Weapon Mastery II, Base Attack Bonus +11
Benefit: When you wield two weapons or attack with both ends of a double weapon as part of a full attack, you take no penalty on your attack rolls. You only gain this benefit if you are wielding a weapon with which you are proficient.
Normal: If you use a full attack action to make more than one attack on your turn, you take a -10 penalty on all attack rolls for the round.
Special: