Two-handed

[Sephiroto]

SKILL_TWO_HANDED                                                   (Combat)

  This automatically-used skill is invoked whenever your character fights
with a weapon in both his/her hands (see "help etwo"). It represents your
character's proficiency in fighting with two-handed weapons.

Notes:
  It is somewhat easier to parry using a two-handed weapon.

  The frequency of attacking with a two-handed weapon is greater, as it is
  easier to recover from a two-handed attack than other styles of combat.

  No shield can be employed when using a two-handed weapon, and your
  character is thus somewhat easier to hit.

I take this to understand that your two-handed skill goes into effect whenever etwo'ing a weapon, correct?  But do you only get the benifit of the skill when using a two-handed weapon, or when etwo'ing a weapon?  I'm a little unclear with this.

[Ghost]

As far as I know, it is etwo-ing