I have a DW too and this is the best way i think:
http://dbocom.com/tools/skill-calcul...1103311053430/
You didnt put
Powerful Roar
, its 100% neccesary because you need to take the agro at all mobs but DW doesnt make lots of damage, a turtle could take agro easy so this skill is very usefull to do.
I put 2 SP in
Draconic Taunt, this skill works only in 1 mob so its very usefull to use in a boss (because Powerful roar isnt enough to take aggro 100% time, with those 2 skills you can).
At finish, in
Energy Siege (best skill to farm, 25 metres radius area *O*) DBOcom says you can put 4 SP but in game i can only put 3 SP.