[dev1143] One-handed and Ranged Weapon Adjustments
Status modifiers for hand-to-hand, one-handed, and ranged weapons will be increased as shown below.
As a result of this adjustment, the status modifiers for one-handed weapons used in the main weapon slot will be the same as that for two-handed weapons.

Hand-to-hand
Pre-adjustment Post-adjustment
Attack (STR) 50% → 62.5%
Accuracy (DEX) 50% → 75%
*The attack and accuracy status modifiers for hand-to-hand weapons will be applied to both hands.

One-handed Weapons
Main Weapons Pre-adjustment Post-adjustment
Attack (STR) 50% → 75%
Accuracy (DEX) 50% → 75%

Sub Weapons Pre-adjustment Post-adjustment
Accuracy (DEX) 50% → 75%
　 Gildrein - Community Team


This was from a Community Team member post in 2013, whereas it was pretty much confirmed that stat modifiers apply to both hands---like a one-handed weapon... if that's the case, I'm not sure that the two-handed weapon proposed adjustment applies since the "sub weapon" slot can be utilized by a two-handed weapon wielder.