Dual Weapon Mastery I

Dual Weapon Mastery I
You are adept at fighting with two weapons and double weapons.
Prerequsites: Dexterity 13, Base Attack Bonus +1
Benefit: When you attack with two weapons or with both ends of a double weapon as part of a full attack action, you take a -5 penalty (instead of a -10 penalty) on all attack rolls until the start of your next turn. You only gain this reduced penalty 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: