nice video, I just changed my E/Me to a E/Mo and am interested in trying out a build similar to yours. a few questions:
1) what song is that? goes really well with your video

(foo fighters?)
2) I noticed you had Balthzazar's Spirit(?) on your skill bar but never used it during the video. do you normally use it but just not for this video?
3) very nice farming but i noticed none of the enemies you were fighting had any interupts, unlike the mo/w video where even hill giants were farmed (

) so do you know of any way to avoid or block being interupted as a e/mo? I didn't really see any skills for this build that could do that, and my character becomes almost useless while fighting a mob of herders or ice golems. =/
1 - Been answered
2 - Answered this in a different post, back at the time, I was testing to see how the return on it was. Compairing the ratio of downtime with it to downtime without it on. Turns out it isn't needed on an E/Mo due to the energy storage. Instead I usually slot in some sort of hex or condition purge.
3 - True the E/Mo has no options for knockdown prevention. However due to having more MP than a Mo/* I can afford to farm entirely different mobs they may have more trouble with. Can spam Remove Hex or Mend Condition till the cows come home. And during such situations you simply have to retool the build to the zone you plan to farm.
3b - Yes there is a way, Only 1 of the spells on that video's hotkey bar can really be interrupted, that being symbol of wrath.
So if fighting a knockdown encounter it might look more like this
-Zealot's Fire Pre Fight
-Run just outside agro radius
-Cast Shield of Judgment
-Run into field, run around, let a couple knockdowns hit, it actually helps them cluster
-Hit Balthazar's Aura
-Glyph of Concentration(Not only a dummy spell that you can afford to have interrupted, it's cast on yourself and counts towards ZF)
-Symbol of Wrath
-Glyph of Sacrifice(Another option if you feel you may be interrupted)
-Whatever healing you need
You could also throw in magnetic aura or any number of ele evade/block buffs. It will never be 100% like the M/Wo vs knockdown, but if the dance is done right, it aint too hard.
I think of farming like this
Mo/W - Need For Speed Underground, you tune it up, it's set, no more tweaking needed damn if you can't do whatever you want. IE less work in the long run.
E/Mo - Gran Tourismo, you tune it up, holy crap why does this rule in 1 spot but suck in another, oh wait, e/mo is like a real car you have to tune it specifically for what you want it to do. IE far more work, same return.
Besides if you're farming, you're a nerd anyway. You might as well dance like one