I found a set up that works really well for me in Mp10 solo or groups.
Link to my Bnet to look at the skills -->
http://us.battle.net/d3/en/profile/Zeus-1523/hero/34871218I tired just about everything it seems like but this one works best for me.
I use that bola shot rune cause it has a high % dmg, the 2seconds shouldn't be a problem, only used for single targets anyways.
I use Chakram with Surieken Cloud cause if you active Gloom and then use that the life steal effect of Gloom stays on even after Gloom is gone, so upclose when monsters are surrounding you, you still are doing damage which is coverted to life, which helps SO much imo...a lot of times I dont even need gloom or hardly use it.
Everything else explains itself I guess.
Im in no way a DH expert, in fact still very new to them, but I found something that works great for me so I thought I would share.