Assassin TF Throwing Dagger vs TF Great Xbow for ranged option

[HuneyMunster]

Anyone tested if TF Great Xbow with 1 point in mech for Arbalesta vs a TF Throwing Dagger gives higher dps?

Great Xbow 3.5[2d8] + 9 18-20 x2
Throwing Dagger 3.5[1d4] + 9 18-20 x3 with Knife Spec

Its obvious crits with dagger would be higher, but regular damage will be higher with Xbow. Xbow also get advantage of adding bolt effects to for dmg and DR bypasses.

I believe Throwers can still benefit from offhand effects while Xbow is counted as two hander and get t2 extra aug slot and t3 gets 2 enhancement bonus.