Stalker0 said:Is there any difference between using 2 weapons and taking the feat to reduce the penalty to -5 or taking double attack and take the -5 to attack for 2 attacks besides the flavor?
Well with Double Attack you can get two attacks at –5 with a two-handed weapon getting 2 x Str bonus on each hit.
With Dual Weapon Mastery III you can attack once with each weapon with 1 x Str bonus on each hit at no penalty. The penalty for Dual Weapon Mastery II is –2, and for Dual Weapon Mastery I it is –5.