My build: http://d3up.com/b/997129/wuff
Unbuffed dps: 142k, fully buffed dps 193k.
Unbuffed eHP: 241k, fully buffed eHP: 439k.
At MP5, I usually have to put on UA because I die to elite mobs with coincidentally horrible affixes. At MP4, I usually need UA as well, just that I don't die that frequently (about twice/run).
Is the fully buffed dps and eHP sufficient to run MP5 effectively, in your experience? (With IA, of course) I find that elite mobs suck up big big amounts of time, like 20+ seconds per elite pack. In addition, I frequently die from RD and electrified packs, as well as big tanky elite packs (Colossal Golgor elite w/ Extra Health, anyone?)
For upgrades, should I trade eHP for more dps, and hence more sustain? I think the main issue is that my LS isn't spectacular, nor is my dps, therefore I have problems sustaining myself when battling mobs for 10+secs.