I am playing a monk and we have a spell caster in the group who casts haste.
When making a full attack action, a hasted creature may make one extra attack with one natural or manufactured weapon. The attack is made using the creature's full base attack bonus, plus any modifiers appropriate to the situation. (This effect is not cumulative with similar effects, such as that provided by a speed weapon, nor does it actually grant an extra action, so you can't use it to cast a second spell or otherwise take an extra action in the round.)
My question is, for the monk what value is used? Is it 3/4 bab progression, or the flurry full bab -2 progression?
Also, this value should be the same for the monk ki ability to gain an extra attack?