My main character is a BH, Advanced Prototype and I'm pretty happy with its play stile and damage output. my talent tree is exactly like
http://www.torhead.com/skill-calc#301hMhZMsRrRrfk0sZb.1
except i have 1 point in Kolto Veins instead of Power Armor.
Since there is no DPS meter in game, why you say that damage output is not good ? this is just how you feel ? DPS rotation is a bit tricky as far as i know. I am stacking crit/surge and im pretty happy with its damage output although we got a nerf on Surge last patch which sucks.