Best Mechromancer Setup???

What do you think is the best Mechromancer setup that deals the most damage? I feel like I'm not doing enough damage... I'm looking for weapons, shields, relics, mods, and skill trees

Mine:

Sledge's Shotgun: 6203 x 14
3605.9 electrocute dmg/sec
8.0% chance to shock
Rustler's Bushwack: 5306 x 17
New and Improved Shotgun Supreme!: 6483 x 17
Original Shotgun Supreme!: 5424 x 17
3605.9 electrocute dmg/sec
8.0% chance to shock
Evolution: 34040 capacity
2121 recharge rate
2.78 recharge delay
+68% elemental resistance
+21094 max health

Perked mostly into the damage tree, and the rest in the elemental tree.

I also have a 30% damage shotgun relic and a terrible class mod lol xD

Please! Post your Mechromancer setups! ^_^

If you can, include a pic of your skill tree setup!