Modest stats (I felt it was enough to try):
42.5k unbuffed dps
650-700 all resists
I ran a build that seeks to maximize 100% Acid Rain time, and was similar to the most efficient build on my SC WD: http://us.battle.net/d3/en/calculator/witch-doctor#RVYUdT!ZYT!abZccc
It was pretty exciting and felt dangerous at the same time. A squishy WD, who can get completely blown up in an instant... I had to be a lot more alert than usual. The run actually took a bit longer than my usual runs, because I played more tentatively. Build worked good of course.
Keeps 2 gave me the light bulb that made me decide to switch back to Spirit Vessel after this run, as I didn't want to lag into a bunch of fallen maniacs and just die. My usual strat is to dump acid rain or zombie bears on first sight and run back (stick and move). But if lag causes them to not be where they are, it would be a !@#$ty way to die. Also, I don't want to be trapped in waller/firechains/vortex and have spirit walk on cooldown. So now, for me, Spirit Vessel is mandatory in HC. Unless I have a death pool going on or something. =]
This is for anyone who plays WD and wants to know someone tried it. Hope Lykotic sees this post!
TL;DR: Switched back to Spirit Vessel spec, but got it out of my system.