Its hard to answer that unless you tell me what skills in general =p do you want to use.
I would never socket a BL's weapon unless its for the skills red mist or blood command, any thing else is a complete fail
or is not needed. I actually tested Furious Focus gems but the skills have been replaced with another skill
it no longer exists due to the Furious Focus tree getting nerfed from Skill to Passive.
for a BL dps im going to assume thats using piercing flurry and to get the most dps from that it would have to be perfect
Tourimaline to increase the attack speed.
Such a shame that is ranged and not melee dmg