I switch my 2x 5*gem to 2* gem (Pain clasp & Vipers bite). Pain clasp for the continues bonus dmg% and of course Vipers bite to activate the Dot's 100% all the time. These 2 2* gems works better than most 5* gem. My gem setup right now: 1. Blood Soaked Jade 2. Bottle Hope 3. Roiling Consequence 4. Starfire Shards 5. Void Spark 6. Mothers Lament 7. Pain Clasp 8. Vipers Bite
DH can't really run DoT builds because our only Bleed ess have very low base damage and no ess to modify them. The only way to make it work is to use a form of Summon builds and have very high potency. The Strafe clone with the rockets can apply the DoTs the most efficiently.