Swashbuckler/Master Thrower question.

[erealspiller84]

Im sure this has been discussed somewhere, but google isn't turning up what I'm looking for.

How do certain damage bonuses work with the master throwers palm throw trick?
Insightful Strikes from the swashbuckler class adds your int bonus to weapon damage rolls. Using daggers, would that be 1d4+int+1d4+int or 1d4+1d4+int?
Would it be the same for deadly defence from the complete scoundrel? What about weapon specialization?
Im sure that sneak attacks are only applied to one weapon in the palm throw.

 

[radmod]

It is as you surmised. With a palm throw you make a single attack roll, but specifically must make separate damage rolls for each weapon.
So, Insightful Strike, which adds Int to the damage roll, adds to each roll. So it would be 2 x (d4 + INT) or, if you like, d4+INT/d4+INT.
With Deadly Defense you add the damage to each weapon so you would add it to each dagger (just like if you had two rapiers).
Weap Spec is also to each damage roll. So twice.

A sneak attack, however, is a single attack to which you add additional damage. Therefore, you only get the additional damage once.