Improved Disarm Partner

When an ally with this feat fails a disarm combat maneuver check made on his turn against an opponent you are threatening, you can attempt a disarm combat maneuver check against that opponent as an attack of opportunity. If your disarm check fails by 10 or more, you do not drop your weapon. You can use this feat even if you are using a weapon with the disarm special weapon feature.

Normal: If your disarm combat maneuver check fails by 10 or more, you drop your weapon.